Classification of eye diseases according to ICD 10. One of the most common reasons for visiting an ophthalmologist: eye injuries, their types
Fortunately, pathology of the optic nerve, the conductor of electrochemical signals from the retina to the visual cortex of the brain, is relatively rare in ophthalmological practice; According to medical and statistical data, the share of such pathology in the total flow of eye diseases does not exceed 1-1.5%. However, every fifth (according to other sources, every fourth) of such cases ends in irreversible blindness due to optic nerve atrophy.
Atrophy - “optic neuropathy”, organic degeneration of the neural fibers of the optic nerve due to a pronounced deficiency of its nutrition and blood supply - can be either complete or partial. In the latter case, there is a profound decrease in all visual functions, including disturbances in color perception, narrowing of visual fields, etc.; During ophthalmoscopy, the optic disc extending into the macular region of the retina (the “yellow spot”, most sensitive to light) looks paler than usual.
Causes of optic nerve atrophy
The etiological causes of optic neuropathy can be various chronic or acute eye diseases, pathology of the central nervous system, ophthalmic trauma, general intoxication, severe systemic diseases (endocrine, autoimmune, etc.).
Among the actual ophthalmopathic factors, under the influence of which optic nerve atrophy can begin, glaucoma of various forms is in the lead; pigmentary retinal (retinal) dystrophy; all kinds of blockages of the retinal arteries and drainage veins (for example, occlusion of the central retinal artery); severe myopia; uveitis, retinitis, neuritis, orbital vasculitis and other inflammations. In addition, the optic nerve can be involved and atrophy during the development of oncopathology, in particular with primary orbital cancer, meningioma or glioma of the optic nerve, neuroma or neurofibroma, osteosarcoma, sarcoidosis.
Diseases of the central nervous system that provoke or “trigger” atrophic processes in the optic nerve include mainly pituitary tumors, chiasms (compressing the optic chiasm), infectious and inflammatory processes of the meninges (encephalitis, meningitis, arachnoiditis) and general brain abscess, demyelinating diseases (eg, multiple sclerosis), traumatic brain injuries and wounds in the maxillofacial area, especially with direct mechanical damage to the optic nerve.
In some cases, systemic atherosclerosis, chronic malnutrition and exhaustion, vitamin deficiencies and anemia, poisoning with toxic substances become the provoking background and pathogenic soil of optic neuropathy (the most striking examples are frequent methyl poisoning when consuming surrogate alcoholic beverages, as well as intoxication with nicotine, insecticides, and drugs ), massive blood loss (for example, with extensive internal hemorrhages), diabetes mellitus and other endocrinopathy, lupus erythematosus, Wegener's granulomatosis and other autoimmune disorders.
In some cases, the optic nerve is atrophied already at birth (as a rule, this occurs with severe chromosomal pathology with gross skeletal and cranial deformations, for example, with acro-, micro- and macrocephaly, Crouzon's disease and other genetically determined anomalies of intrauterine development.
Finally, there is a fairly large proportion of cases (up to 20%) when the direct causes of optic nerve atrophy cannot be established.
Classification of optic nerve atrophy
As shown above, optic neuropathy can be either congenital or acquired. In accordance with this, hereditary forms are distinguished, classifying them according to the type of inheritance: autosomal dominant, autosomal recessive, mitochondrial.
Autosomal dominant optic atrophy can be expressed in varying degrees and in some cases is observed in combination with congenital deafness. Autosomal recessive atrophy is part of the structure of a number of chromosomal syndromes (Wolfram, Kenny-Coffey, Jensen, Rosenberg-Chattorian syndromes, etc.).
Mitochondrial atrophy occurs when mitochondrial DNA is mutated (Leber's hereditary optic neuropathy).
Acquired optic neuropathy can also develop for various reasons and in different types. Thus, primary atrophy is based on long-term mechanical compression of the neural optic canal, while the optic disc when examining the fundus may appear intact, undamaged, with normatively clear boundaries.
Secondary atrophy may be a consequence of swelling of the optic nerve head, which, in turn, is one of the consequences of pathology of the retina or the nerve itself. The degeneration and displacement of specialized, functional neural tissue by neuroglial tissue has more pronounced and obvious ophthalmoscopic correlates: the observed optic disc in this case is usually increased in diameter, its boundaries lose clarity. In glaucoma, the axial symptom of which is chronically increased intraocular fluid pressure, developing collapse of the lamina cribrosa of the sclera leads to atrophy of the optic nerve.
The observed tint of the optic disc has significant diagnostic significance. Thus, initial, partial and complete atrophy of the optic nerve looks different during ophthalmoscopy: in the initial stage there is a slight blanching of the disc with the usual coloring of the nerve itself, with partial atrophy the optic nerve disc turns pale in individual segments and, finally, complete atrophy is observed as total and uniform blanching of the optic disc in combination with a narrowing of the blood vessels supplying the fundus of the eye.
There are also ascending and descending forms of atrophy (with ascending, the atrophic process in the nerve is initiated by damage to the retinal tissue, with descending, it begins in the fibers of the optic nerve itself). Depending on the extent of the process, atrophy is divided into unilateral and bilateral; by the nature of development - stationary (stable) and progressive, which can be diagnosed through regular ophthalmological observations over time.
ICD-10 code
In the International Classification of Diseases, Tenth Revision (ICD 10), optic nerve atrophy has code H 47.2
Symptoms of atrophy
One of the main signs of incipient optic nerve atrophy is an uncorrectable decrease in visual acuity and quality: neither glasses nor contact lenses can compensate for the decrease in visual functions caused by the atrophic process in the nerve. Rapidly progressive optic atrophy can result in complete, incurable blindness within months or even days. With partial atrophy, organic degradation and increasing functional failure of the visual organs stop at a certain level and stabilize (the reasons for such stabilization often also remain unclear).
Visual fields are narrowed, as a rule, due to loss of peripheral (“side”) vision - the so-called tunnel vision syndrome. Color vision disorders concern mainly red-green and yellow-blue gradients of the general spectrum. Scotomas may appear, i.e. blind spots in the field of relatively intact vision.
Quite typical for optical neuropathy is the so-called. pupillary defect: weakening of the pupil's reaction to light while maintaining overall consistency of pupillary reactions. The pupillary defect can be unilateral or detected in both eyes simultaneously.
Whatever symptoms accompany optic nerve atrophy, they should only be detected during a professional ophthalmoscopic examination and interpreted by a qualified ophthalmologist.
Diagnosis of CHAZN
In addition to visual ophthalmoscopy, any information relating to the premorbid (pre-morbid) period of the patient’s life can acquire decisive diagnostic significance: pharmacological group and dosages of previously taken medications, previous intoxications and common diseases, self-destructive habits (smoking, alcohol abuse, unhealthy lifestyle), experienced TBI (traumatic brain injury), background residual pathology of the central nervous system, etc.
Direct examination includes the establishment or exclusion of exophthalmos (“bulging”, anterior displacement of the eyeball), study of pupillary and corneal reflexes, mobility of the eyeball, general acuity and visual fields (visimetry, perimetry), diagnosis of color perception.
As stated above, one of the most informative diagnostic criteria is the appearance of the optic disc during ophthalmoscopy of the fundus: color, clarity of boundaries, diameter, uniformity, deformation, excavation (“pitting”) of the optic disc surface, Kestenbaum’s symptom (reduction in the usual number of small capillaries by disk), caliber, shade and linearity/tortuosity of the retinal arteries and veins. You may also need an additional tomographic study in one mode or another (laser scanning, optical coherence tomography), an electrophysiological study to measure sensitivity thresholds and lability of the optic nerve. In case of atrophy caused by glaucoma, it is mandatory to measure and control IOP (intraocular pressure), incl. in daily and load modes.
Volumetric orbital oncopathology is diagnosed using plain radiography. If a detailed study of circulation and hemodynamics in the vascular system is necessary, fluorescein angiography (one of the methods of contrast radiography) and/or Doppler ultrasound is prescribed. For the purpose of clarifying diagnostics, consultants of related specialties are involved, primarily neurologists, oncologists, neurosurgeons, and in the presence of systemic vasculitis - rheumatologists, etc.; Imaging methods for studying the skull and brain (radiography, CT, MRI) are prescribed.
Occlusions of retinal vessels (arteries, veins) require the involvement of a vascular surgeon. If infectious symptoms are present, laboratory tests (ELISA, PCR) are prescribed.
Optic atrophy should be differentiated from peripheral cataracts (clouding of the lens) and amblyopia (“lazy eye syndrome”).
Treatment of partial optic atrophy
The principle of etiopathogenetic medicine requires the identification and maximum possible elimination of the causes of the disease; Since optic neuropathy is much more often a consequence and manifestation of other diseases than an autonomous and isolated pathology, the therapeutic strategy should begin with the treatment of the underlying disease.
In particular, for patients with intracranial (intracranial) oncopathology, hypertension, established cerebral aneurysms, it is recommended, first of all, to undergo neurosurgical intervention in the appropriate direction.
Conservative treatment for optic nerve atrophy is focused on stabilizing and maintaining the functional status of the visual system to the extent possible in this particular case. Thus, various anti-edematous and anti-inflammatory measures may be indicated, in particular, retro- or parabulbar injections (administration of dexamethasone preparations, respectively, behind or next to the eyeball), droppers with solutions of glucose and calcium chloride, diuretics (diuretics, e.g. lasix). According to indications, injections of hemodynamic and optic nerve nutrition stimulants (trental, xanthinol nicotinate, atropine), intravenous nicotinic acid, aminophylline are also prescribed; vitamin complexes (B vitamins are especially important), aloe and vitreous extracts, tableted cinnarizine, piracetam, etc. For glaucomatous symptoms, drugs that reduce intraocular pressure are used (for example, instillation of pilocarpine).
Physiotherapeutic methods such as acupuncture, laser or electrical stimulation, various modifications of the electrophoresis technique, magnetic therapy, etc. are quite effective for optic nerve atrophy. However, if vision is reduced deeper than 0.01, any measures taken are, unfortunately, ineffective.
Forecast and prevention of optic nerve atrophy
The degree of cure and the possibility of rehabilitation for almost any ophthalmopathology depends decisively on how timely the patient applied and how skillfully, accurately and completely the diagnosis was established. If adequate treatment begins at the earliest stages of optic nerve atrophy, stabilization and, in some cases, partial rehabilitation of visual functions is quite possible. Their complete restoration today remains beyond the scope of available therapeutic options. With rapidly progressing atrophy, total blindness is a very likely outcome.
A preventive measure that is effective against optic nerve atrophy is “just” the timely treatment of any acute or chronic diseases, no matter what system of the body they concern: visual, nervous, musculoskeletal, immune, endocrine, etc. Of course, intoxication should be avoided, especially the voluntary poisoning with alcohol or nicotine described above. Any massive blood loss requires adequate compensation.
And, of course, even a slight tendency towards vision deterioration requires immediate consultation with an ophthalmologist.
On October 1, 2014, the International Classification of Diseases, 10th Edition, Clinical Modification (ICD-10-CM) comes into force in the United States. In Russia it has been used since 1999. This version differs significantly from the ICD-9 adopted so far in the United States. In particular, the seventh - ophthalmological - section, devoted exclusively to diseases of the eyes and adnexa, has been significantly changed. In the ICD-9 version, the senses (vision and hearing) were included in the section on the nervous system. In ICD-10, both organs are considered separately, each in its own section, although the encodings in these sections begin with the same Latin letter H (see Table 1).
Table 1. Blocks of the seventh section of ICD-10
|
Codes |
Eye diseases |
|
Diseases of the eyelids, lacrimal organs and orbit (orbit) |
|
|
Diseases of the conjunctiva |
|
|
Diseases of the sclera, cornea, iris and ciliary body |
|
|
Lens diseases |
|
|
Diseases of the choroid and retina |
|
|
Glaucoma |
|
|
Diseases of the vitreous body and eyeball |
|
|
Diseases of the optic nerve and visual pathways |
|
|
Diseases of the eye muscles, binocular functions, accommodation and refraction |
|
|
Visual impairment and blindness |
|
|
Other eye and appendage disorders |
|
|
Other intraoperative and postoperative complications, as well as diseases of the eyes and appendages, not previously classified. |
More specificity and new terms
ICD-10 has updated terminology to bring it closer to medical realities. Thus, it allows the use of combining one-shot codes to describe two close states. In addition to greater specificity, the ICD-10-CM contains separate codes for many left and right eye conditions (lateralization). In the seventh section, many diseases are listed for the right eye, left eye, both eyes and when the eye is not listed. Many eyelid diseases are differentiated by which eyelid is affected: upper right, upper left, lower right, or lower left. In addition, in accordance with the ICD-10 concept, postoperative complications in the case of eye surgery are listed in the ophthalmology section.
The term "senile cataract" is replaced in ICD-10 by the term "age-related cataract". Cataracts are collected in block H25-H28 “Diseases of the lens”. The term “nuclear sclerosis” has been replaced by “age-related nuclear cataract.” There are codes separately for infantile and juvenile cataracts, as well as for traumatic, drug-induced and secondary cataracts.
Codes for glaucoma
In ICD-10, the coding for glaucoma has undergone some changes compared to ICD-9: for example, it is necessary to add a seventh character to describe the stage of glaucoma instead of specifying an additional diagnostic code. First of all, the form of glaucoma is selected from the following list:
. Glaucoma in diseases classified elsewhere;
. Suspicion of glaucoma (subsections existing in ICD-9 under the title “borderline glaucoma” are now located here).
. Open angle.
. Anatomically narrow angle (suspicion of primary angle-closure glaucoma).
. Low pressure.
. Primary angle-closure glaucoma.
. Secondary glaucoma caused by medications, eye inflammation, injury, or other disorders.
. Other specified form or
. Unspecified form.
Indicate the eye - left, right, both, or without specifying a specific eye. At the very end, the seventh sign indicates the stage:
. 0 - unspecified;
. 1 - light;
. 2 - moderate;
. 3 - heavy or
. 4 - uncertain.
The stage is not required for all cases of glaucoma designation, but when necessary, it is indicated next to the category code.
The addition of lateralization and stage made the total number of glaucoma codes in the ICD-10 enormous. If a patient has different forms of glaucoma on the left and right, or if the disease is at a different stage in each eye, then two separate codes are assigned (for each eye), using the correct coding to indicate lateralization and stage.
Encoding and lateralization
Many eyelid diseases have separate ICD-10 codes for the upper and lower and right and left eyelids (see Table 2).
Table 2. Example of encoding for lateralization
For example, blepharitis is classified separately for the right upper, right lower, right unspecified, left upper, left lower, and left unspecified eyes. A separate code exists for unspecified eye and unspecified eyelid. In addition, by analogy with other diseases, blepharitis does not have a “two-way” code. If the patient has disease in both eyes, then codes are selected for the left and right eyes separately.
Eye injuries and complications
The coding of eye injuries is given in section 19. Unlike the ICD-9 code catalog, the injury section in ICD-10 is not broken down by injury type. This section is compiled rather according to anatomical characteristics, and only then - according to the types of injuries.
For example, a laceration without the presence of a foreign body in the left eyelid and periocular area is coded with diagnostic code S01.112. The ICD-10 injury coding requires a seventh digit to describe the number of times the patient was seen for their injury (eg, either the initial visit or follow-up). The initial diagnosis of this injury will be indicated in the medical department. documentation as S01.112A. During dynamic monitoring, the same code is used, but only the seventh digit changes, so for subsequent diagnoses the code will be S01.112D.
ICD-10 includes intraoperative and postoperative complications in the appropriate section, which distinguishes ICD-10 from ICD-9. In the ophthalmology section, these complications are listed in block H59, which contains 57 diagnostic codes for eye pathologies after cataract surgery, for intraoperative hemorrhages and hematomas of the eye and adnexa, for accidental puncture or rupture in the eye or adnexa, for postoperative hemorrhage, for inflammation ( infection), for chorioretinal scar after treatment of retinal detachment, as well as for other intra- and postoperative complications not previously classified. Most of these codes require consideration of lateralization. For example, code H59.111 is “Intraoperative hemorrhage and hematoma of the right eye and appendages complicating ophthalmic procedures.”
Seventh sign
The role of the seventh sign differs in different sections. In the ophthalmology section, it indicates the stage of glaucoma. In the trauma section, it may indicate whether the physician is seeing the patient for the first time for an injury or whether it is a follow-up visit. The seventh sign has a different meaning for some types of breaks. Disease codes due to external causes, corresponding to E codes in ICD-9, are found in section 20 and their number has increased significantly.
The introduction of ICD-10, which is now a normative document in many countries, completely changed the previously existing coding system - from 3-, 4- and 5-digit codes to codes that can have from 3 to 7 characters.
), psychogenic factors (emotional disorders and chronic stress), as well as working in poor lighting conditions.
Asthenopia can be temporary and go away without treatment if working conditions are improved (introduction of frequent breaks, compliance with lighting standards, timely completion of work, its rational distribution) for people whose professions involve significant visual stress.
But most often, persistent asthenopia acts as a borderline state, signaling the transition of functional vision disorders into organic changes. In such cases, timely diagnosis and treatment of this disorder will help to avoid serious disturbances in visual functions and the development of degenerative or metabolic disorders in the eye tissues.
ICD-10 code
Doctors classify asthenopia as a subjective disorder.
The code for this diagnosis isH53.1 .
The mechanism for the development of this pathology is considered to be frequent visual strain, when the accommodative and disaccommodative functions of the eyes (regulating the normal perception of objects and images at various distances) work to the limit and their compensatory properties begin to deplete.
Similar processes can be observed in people working with paper and electronic documents (programmers and PC users) or in poor lighting conditions (for example, driving at night). Eye fatigue can be a consequence of ignoring the treatment of eye diseases or incorrectly selected optics (glasses, lenses).
Asthenopia affects both men and women equally; the risk of its manifestation increases with age due to the negative impact of the aging process on the body. But the majority of patients with asthenopia (75%) are people who often use computer equipment, tablets and phones.
Causes
The trigger for the appearance of eye fatigue can be external and internal factors or a combination of them:
1. Unfavorable working or leisure conditions (darkness, lack of normal rest, reading texts with small fonts, flickering of electronic devices).
2. Monotonous work with small objects (jewelry, watch parts or equipment).
3. Short daylight hours in the area where patients live.
4. Poor nutrition, lack of vitamin A in food.
5. Inflammatory and degenerative eye diseases (decreased visual acuity, pathologies, etc.).
6. Diseases and blood supply systems of the eyes.
7. (bruises, etc.)
8. Diseases of the endocrine system (thyrotoxicosis, diabetes, etc.).
9. Mental disorders (neurasthenia, hysteria, etc.)
Due to the wide variety of causes that provoke asthenopia, there are many options for how to treat this pathology; in most cases, therapy for this condition requires complex diagnostics with consultations with doctors of different specialties.
Symptoms
Persistent eye fatigue develops gradually, going through all the traditional stages of development:
1. Subcompensatory, which occurs without symptoms with occasional subjective sensations of visual fatigue.
2. Compensatory, is characterized by more frequent and longer periods of discomfort, which disappears with proper rest. During this period, patients experience moderate burning and a feeling of sand in the eyes, redness of the conjunctiva, the appearance of midges and cloudiness before the eyes.
3. Decompensatory, here eye fatigue becomes permanent (chronic), a decrease in visual acuity and distortion of visual images (, blurriness, etc.) progress, complications appear (,), emotional disturbances develop (irritability, tearfulness, apathy or anger).
Types of asthenopia
1. Accommodative , the most common type of this pathology. Often develops against the background of visual impairment (myopia, farsightedness, astigmatism), as well as with emotional shock and physical exhaustion. Signs of this condition are:
- inability to read texts (letters merge or blur);
- a feeling of compression in the periocular area, in the forehead and temples.
2. Retinal , this is a phenomenon of eye fatigue with the development of neuroses in patients; in this form, apart from complaints of visual discomfort (difficulty concentrating on one point, and darkening of the eyes), there are no objective signs of visual impairment.
3. Muscular asthenopia develops from weakness of the muscle ring responsible for the size of the pupil; because of this, natural images are not correctly perceived by the organ of vision. Therefore, to create a clear “picture,” people have to constantly strain their visual muscles, and this can lead to eye strain.
With this form of this disorder, patients feel:
- stiffness of the facial muscles;
- pain and spasms inside the eyes;
- persistent visual fatigue.
4. Symptomatic the form of the disorder gives rise to outbreaks during exacerbation of chronic diseases in the body (inflammation of the conjunctiva, iris and other eye pathologies, diseases of internal organs, endocrine or nervous systems) or with the development of acute infections (influenza, sore throat, sinusitis, etc.). In these cases, eye fatigue is combined with the main symptoms of the underlying disease.
5. Mixed asthenopia is manifested by simultaneous accommodative and muscle disorders. With it, visual pathology is manifested by distortion of perceived objects and pain in various parts of the head and face.
Diagnostics
1. . Helps identify deviations in visual acuity.
2. Study with recording of the width, volume and tension of the internal muscles of the eyes.
3. Refractive measurements that determine early refractive errors, as well as myopia and astigmatism.
4. The biomicroscopy method allows you to identify changes in the tissues of the eyeball.
5. Measuring intraocular pressure, a technique for determining its deviations from the norm.
Treatment
Therapy for asthenopia depends on the causes that caused it and the stage of the disorder.
For patients without organic changes in the ocular apparatus, it is recommended:
- a special regime of visual stress with an even distribution of periods of work and rest;
- performance
CLASS VII. Diseases of the eye and its adnexa (H00-H59)
This class contains the following blocks:
H00-H06 Diseases of the eyelids, tear ducts and orbits
H10-H13 Diseases of the conjunctiva
H15-H22 Diseases of the sclera, cornea, iris and ciliary body
H25-H28 Lens diseases
H30-H36 Diseases of the choroid and retina
H40-H42 Glaucoma
H43-H45 Diseases of the vitreous body and eyeball
H46-H48 Diseases of the optic nerve and visual pathways
H49-H52 Diseases of the eye muscles, disorders of concomitant eye movement, accommodation and refraction
H53-H54 Visual impairment and blindness
H55-H59 Other diseases of the eye and its adnexa
The following categories are marked with an asterisk:
H03* Lesions of the eyelid in diseases,
H06* Lesions of the lacrimal apparatus and orbit in diseases classified in other headings
H13* Lesions of the conjunctiva in diseases classified elsewhere
H19* Lesions of the sclera and cornea in diseases classified in other headings
H22* Lesions of the iris and ciliary body in diseases classified in other headings
H28* Cataracts and other lesions of the lens in diseases classified elsewhere
H32* Chorioretinal disorders in diseases classified elsewhere
H36* Retinal disorders in diseases classified elsewhere
H42* Glaucoma in diseases classified elsewhere
H45* Lesions of the vitreous body and eyeball in diseases classified in other headings
H48* Lesions of the optic nerve and visual pathways in diseases classified under other headings
H58* Other lesions of the eye and its adnexa in diseases classified in other headings
DISEASES OF THE EYELIDS, LACRIMAL DUCT AND ORBITS (H00-H06)
H00 Hordeolum and chalazion
H00.0 Hordeolum and other deep inflammations of the eyelids
Abscess)
Furuncle) century
Barley)
H00.1 Chalazion
H01 Other inflammations of the eyelids
H01.0 Blepharitis
Excluded: blepharoconjunctivitis ( H10.5)
H01.1 Non-infectious dermatoses of the eyelid
Dermatitis:
allergic)
contact)
eczematous) eyelids
Discoid erythematous lupus)
Xeroderma)
H01.8 Other specified inflammations of the eyelid
H01.9 Inflammation of the eyelid, unspecified
H02 Other eyelid diseases
Excluded: congenital malformations of the eyelid ( Q10.0-Q10.3)
H02.0 Entropion and trichiasis of the century
H02.1 Ectropion of the century
H02.2 Lagophthalmos
H02.3 Blepharochalasis
H02.4 Ptosis of the eyelid
H02.5 Other diseases affecting the function of the eyelid
Ankyloblepharon. Blepharophimosis. Wrinkling of the eyelid
Excludes: blepharospasm ( G24.5)
tic (psychogenic) ( F95. -)
organic ( G25.6)
H02.6 Xanthelasma of the century
H02.7 Other degenerative diseases of the eyelid and periocular area
Chloasma)
Madaroz) centuries
Vitiligo)
H02.8 Other specified diseases of the century. Hypertrichosis of the century. Unremoved foreign body in the eyelid
H02.9 Disease of the century, unspecified
H03* Lesions of the eyelid in diseases classified elsewhere
H04 Diseases of the lacrimal apparatus
Excluded: congenital malformations of the lacrimal apparatus ( Q10.4-Q10.6)
H04.0 Dacryoadenitis. Chronic hypertrophy of the lacrimal gland
H04.1 Other diseases of the lacrimal gland. Dacryops. Dry eye syndrome
Lacrimal gland:
cyst
atrophy
H04.2 Epiphora
H04.3 Acute and unspecified inflammation of the tear ducts. Dacryocystitis (phlegmatous)
Dacryopericystitis) acute, subacute or
Canaliculitis lacrimal) unspecified
Excluded: dacryocystitis of the newborn ( P39.1)
H04.4 Chronic inflammation of the tear ducts
Dacryocystitis)
Lacrimal gland:)
canaliculitis) chronic
mucocele)
H04.5 Stenosis and insufficiency of the lacrimal ducts. Dacryolite. Eversion of the lacrimal punctum
Lacrimal stenosis:
tubule
duct
bag
H04.6 Other changes in the tear ducts. Lacrimal fistula
H04.8 Other diseases of the lacrimal apparatus
H04.9 Disease of the lacrimal apparatus, unspecified
H05 Diseases of the orbit
Excluded: congenital malformations of the orbit ( Q10.7)
H05.0 Acute inflammation of the orbit
Abscess)
Cellulite)
Osteomyelitis) of the orbit
Periostitis)
Tenonite
H05.1 Chronic inflammatory diseases of the orbit. Orbital granuloma
H05.2 Exophthalmic conditions
Eyeball displacement (external) NOS
Hemorrhage)
Swelling) of the eye sockets
H05.3 Orbital deformity
Atrophy)
Exostosis) of the orbit
H05.4 Enophthalmos
H05.5 An unremoved foreign body that had long ago entered the orbit due to a penetrating injury to the orbit
Retrobulbar foreign body
H05.8 Other diseases of the orbit. Orbital cyst
H05.9 Disease of the orbit, unspecified
H06* Lesions of the lacrimal apparatus and orbit in diseases classified elsewhere
CONJUNCTIVAL DISEASES (H10-H13)
H10 Conjunctivitis
H16.2)
H10.0 Mucopurulent conjunctivitis
H10.1 Acute atopic conjunctivitis
H10.2 Other acute conjunctivitis
H10.3 Acute conjunctivitis, unspecified
Excludes: ophthalmia of the newborn NOS ( P39.1)
H10.4 Chronic conjunctivitis
H10.5 Blepharoconjunctivitis
H10.8 Other conjunctivitis
H10.9 Conjunctivitis, unspecified
H11 Other diseases of the conjunctiva
Excluded: keratoconjunctivitis ( H16.2)
H11.0 Pterygium
Deleted: pseudopterygium ( H11.8)
H11.1 Conjunctival degeneration and deposits
Conjunctival:
argyria
stones
pigmentation
xerosis NOS
H11.2 Conjunctival scars. Symblepharon
H11.3 Conjunctival hemorrhage. Subconjunctival hemorrhage
H11.4 Other conjunctival vascular diseases and cysts
Conjunctival:
aneurysm
hyperemia
edema
H11.8 Other specified diseases of the conjunctiva. Pseudopterygium
H11.9 Disease of the conjunctiva, unspecified
H13* Lesions of the conjunctiva in diseases classified elsewhere
H13.0* Filarial invasion of the conjunctiva ( B74. -+)
H13.1* Acute conjunctivitis in diseases classified elsewhere
Conjunctivitis (caused by):
acanthamoeba ( B60.1+)
adenoviral follicular (acute) ( B30.1+)
chlamydial ( A74.0+)
diphtheria ( A36.8+)
gonococcal ( A54.3+)
hemorrhagic (acute) (epidemic) ( B30.3+)
herpesvirus ( B00.5
+)
meningococcal ( A39.8+)
Newcastle ( B30.8+)
herpes zoster ( B02.3+)
H13.2* Conjunctivitis in diseases classified elsewhere
H13.3* Ocular pemphigoid ( L12. -+)
H13.8* Other lesions of the conjunctiva in diseases classified elsewhere
DISEASES OF THE SCLERA, CORNEA, IRIS AND CILIARY BODY (H15-H22)
H15 Diseases of the sclera
H15.0 Scleritis
H15.1 Episcleritis
H15.8 Other scleral lesions. Equatorial staphyloma. Scleral ectasia
Excludes: degenerative myopia ( H44.2)
H15.9 Disease of the sclera, unspecified
H16 Keratitis
H16.0 Corneal ulcer
Ulcer:
cornea:
NOS
central
regional
perforated
ring
with hypopyon
Moray
H16.1 Other superficial keratitis without conjunctivitis
Keratitis:
areolar
filiform
coin-shaped
card-shaped
star-shaped
banded
superficial spot
Photokeratitis
Snow blindness
H16.2 Keratoconjunctivitis
Keratoconjunctivitis:
NOS
caused by external influence
neurotrophic
phlyctenulous
Nodose [nodular] ophthalmia
Superficial keratitis with conjunctivitis
H16.3 Interstitial (stromal) and deep keratitis
H16.4 Neovascularization of the cornea. Shadow-like vessels (corneal). Pannus (corneal)
H16.8 Other forms of keratitis
H16.9 Keratitis, unspecified
H17 Scars and corneal opacities
H17.0 Adhesive leukoma
H17.1 Other central corneal opacities
H17.8 Other scars and corneal opacities
H17.9 Corneal scars and opacities, unspecified
H18 Other corneal diseases
H18.0 Pigmentation and deposits in the cornea. Hemorrhage into the cornea. Kaiser-Fleischer ring
Krukenberg spindle. Stagley Line
H18.1 Bullous keratopathy
H18.2 Other corneal edema
H18.3 Changes in the membranes of the cornea
fold)
Rupture of Descemet's membrane
H18.4 Corneal degeneration. Senile arc. Band keratopathy
Excluded: Moray ulcer ( H16.0)
H18.5 Hereditary corneal dystrophies
Dystrophy:
cornea:
epithelial
granular
lattice
spotted
Fuchs
H18.6 Keratoconus
H18.7 Other deformations of the cornea
Corneas:
ectasia
staphyloma
Descemetocele
Excluded: congenital malformations of the cornea ( Q13.3-Q13.4)
H18.8 Other specified diseases of the cornea
Anesthesia)
Hypoesthesia) cornea
Recurrent erosion)
H18.9 Disease of the cornea, unspecified
H19* Lesions of the sclera and cornea in diseases classified elsewhere
H20 Iridocyclitis
H20.0 Acute and subacute iridocyclitis
Anterior uveitis)
Cyclitis) acute recurrent or subacute
Irit)
H20.1 Chronic iridocyclitis
H20.2 Lens-induced iridocyclitis
H20.8 Other iridocyclitis
H20.9 Iridocyclitis, unspecified
H21 Other diseases of the iris and ciliary body
H22* Lesions of the iris and ciliary body in diseases
classified elsewhere
H22.0* Iridocyclitis in infectious diseases classified elsewhere
Iridocyclitis with:
gonococcal infection ( A54.3+)
herpes virus infection ( B00.5+)
syphilis (secondary) ( A51.4+)
tuberculosis ( A18.5+)
herpes zoster ( B02.3+)
H22.1* Iridocyclitis in diseases classified elsewhere
Iridocyclitis with:
ankylosing spondylitis ( M45+)
sarcoidosis ( D86.8+)
H22.8* Other lesions of the iris and ciliary body in diseases classified elsewhere
DISEASES OF THE LENS (H25-H28)
H25 Senile cataract
Excludes: capsular glaucoma with false lens detachment ( H40.1)
H25.0 Initial senile cataract
Senile cataract:
coronary
cortical
spot
Subcapsular polar senile cataract (anterior) (posterior). Water cracks
H25.1 Senile nuclear cataract. Brown cataract. Nuclear sclerotic cataract
H25.2 Senile blinking cataract. Senile overripe cataract
H25.8 Other senile cataracts. Combined forms of senile cataracts
H25.9 Senile cataract, unspecified
H26 Other cataracts
Excludes: congenital cataract ( Q12.0)
H26.0 Childhood, juvenile and presenile cataracts
H26.1 Traumatic cataract
If it is necessary to identify the cause, use an additional external cause code (class XX).
H26.2 Complicated cataract. Cataracts in chronic iridocyclitis
Secondary cataracts in eye diseases. Glaucomatous flecks (subcapsular)
H26.3 Drug-induced cataracts
If it is necessary to identify the drug that caused the lesion, use an additional external cause code (class XX).
H26.4 Secondary cataract. Secondary cataract. Semmering Ring
H26.8 Other specified cataract
H26.9 Cataract, unspecified
H27 Other lens diseases
Excluded: congenital lens defects ( Q12. -)
mechanical complications associated with the implanted lens ( T85.2)
pseudophakia ( Z96.1)
H27.0 Afakia
H27.1 Lens luxation
H27.8 Other specified lens diseases
H27.9 Lens disease, unspecified
H28* Cataracts and other lesions of the lens in diseases classified elsewhere
H28.0* Diabetic cataract ( E10-E14+ with a common fourth sign.3)
H28.1* Cataracts in other diseases of the endocrine system, nutritional disorders and metabolic disorders,
classified elsewhere
Cataract with hypoparathyroidism ( E20. -+)
Cataracts due to malnutrition and dehydration ( E40-E46+)
H28.2* Cataracts in other diseases classified elsewhere
Myotonic cataract ( G71.1+)
H28.8* Other lens lesions in diseases classified elsewhere
DISEASES OF THE VACUUM AND RETINA (H30-H36)
H30 Chorioretinal inflammation
H30.0 Focal chorioretinal inflammation
Focal:
chorioretinitis
choroiditis
retinitis
retinochoroiditis
H30.1 Disseminated chorioretinal inflammation
Disseminated:
chorioretinitis
choroiditis
retinitis
retinochoroiditis
Excludes: exudative retinopathy ( H35.0)
H30.2 Posterior cyclitis. Pars planetitis
H30.8 Other chorioretinal inflammations. Harada disease
H30.9 Chorioretinal inflammation, unspecified
Chorioretinitis)
Choroiditis)
Retinitis) NOS
Retinochoroiditis)
H31 Other diseases of the uvea
H31.0 Chorioretinal scars
Macular scars of the posterior pole (post-inflammatory) (post-traumatic). Solar retinopathy
H31.1 Degeneration of the uvea
Atrophy)
Sclerosis) of the choroid
Excluded: angioid stripes ( H35.3)
H31.2 Hereditary dystrophy of the choroid. Choroiderma
Choroidal dystrophy (central-areolar) (generalized) (peripapillary)
Annular atrophy of the choroid
Excludes: ornithinemia ( E72.4)
H31.3 Hemorrhage and rupture of the choroid
Choroidal hemorrhage:
NOS
expulsive
H31.4 Choroidal detachment of the eye
H31.8 Other specified diseases of the choroid
H31.9 Choroid disease, unspecified
H32* Chorioretinal disorders in diseases classified elsewhere
H32.0* Chorioretinal inflammation in infectious and parasitic diseases classified elsewhere
Chorioretinitis:
late syphilitic ( A52.7+)
toxoplasmosis ( B58.0+)
tuberculous ( A18.5+)
H32.8* Other chorioretinal disorders in diseases classified elsewhere
H33 Retinal detachment and tears
H34 Retinal vascular occlusions
G45.3)
H34.0 Transient retinal arterial occlusion
H34.1 Central retinal arterial occlusion
H34.2 Other retinal arterial occlusions
Hollenhorst spot [plaque]
Retinal:
arterial occlusion:
branches
partial
microembolism
H34.8 Other retinal vascular occlusions
Retinal venous occlusion:
central
initial
partial
venous branch
H34.9 Retinal vascular occlusion, unspecified
H35 Other retinal diseases
H35.0 Background retinopathy and retinal vascular changes
Changes in the retinal vascular pattern
Retinal:
microaneurysms
neovascularization
perivasculitis
varicose veins
vascular sheaths
vasculitis
Retinopathy:
NOS
background NOS
Coates
exudative
hypertensive
H35.1 Preretinopathy. Retrolental fibroplasia
H35.2 Other proliferative retinopathy. Proliferative vitreoretinopathy
H33.4)
H35.3 Macular and posterior pole degeneration
Angioid stripes)
Cyst)
Drusen (degenerative) macula
hole)
Wrinkling)
Kunta Junius degeneration
Senile macular degeneration (atrophic) (exudative). Toxic maculopathy
If it is necessary to identify the drug that caused the lesion, use an additional external cause code (class XX).
H35.4 Peripheral retinal degenerations
Retinal degeneration:
NOS
lattice
microcystic
palisade
resembling a cobblestone street in appearance
reticular
Excluded: with a retinal tear ( H33.3)
H35.5 Hereditary retinal dystrophies
Dystrophy:
retinal (albipunctate) (pigmented) (yolk-like)
taperetinal
vitreoretinal
Retinitis pigmentosa. Stargardt disease
H35.6 Retinal hemorrhage
H35.7 Splitting of the layers of the retina. Central serous chorioretinopathy. Detachment of the retinal pigment epithelium
H35.8 Other specified retinal disorders
H35.9 Retinal disease, unspecified
H36* Retinal lesions in diseases classified elsewhere
H36.0* Diabetic retinopathy ( E10-E14+ with a common fourth sign.3)
H36.8* Other retinal disorders in diseases classified elsewhere
Atherosclerotic retinopathy ( I70.8+)
Proliferative sickle cell retinopathy ( D57. -+)
Retinal dystrophy in lipid storage diseases ( E75. -+)
GLAUCOMA (H40-H42)
H40 Glaucoma
Excluded: absolute glaucoma ( H44.5)
congenital glaucoma ( Q15.0)
traumatic glaucoma due to birth trauma ( P15.3)
H40.0 Suspicion of glaucoma. Ocular hypertension
H40.1 Primary open angle glaucoma
Glaucoma (primary) (residual stage):
capsular with false detachment of the lens
chronic simple
with low pressure
pigmented
H40.2 Primary angle-closure glaucoma
Angle-closure glaucoma (primary) (residual stage):
acute
chronic
intermittent
H40.3 Glaucoma secondary post-traumatic
H40.4 Glaucoma secondary to inflammatory disease of the eye
If necessary, an additional code is used to identify the cause.
H40.5 Glaucoma secondary to other eye diseases
If necessary, an additional code is used to identify the cause.
H40.6 Secondary glaucoma caused by drugs
If it is necessary to identify the drug that caused the lesion, use an additional external cause code (class XX).
H40.8 Other glaucoma
H40.9 Glaucoma, unspecified
H42* Glaucoma in diseases classified elsewhere
H42.0* Glaucoma in diseases of the endocrine system, nutritional disorders and metabolic disorders
Glaucoma with:
amyloidosis ( E85. -+)
Lowe's syndrome ( E72.0+)
H42.8* Glaucoma in other diseases classified elsewhere
Glaucoma with onchocerciasis ( B73+)
DISEASES OF THE VITROUS AND EYEBALL (H43-H45)
H43 Vitreous diseases
H43.0 Vitreous loss (prolapse)
Excluded: vitreous syndrome after cataract surgery ( H59.0)
H43.1 Vitreous hemorrhage
H43.2 Crystalline deposits in the vitreous
H43.3 Other vitreous opacities
H43.8 Other vitreous diseases
Vitreous body:
degeneration
detachment
Excluded: proliferative vitreoretinopathy with retinal detachment ( H33.4)
H43.9 Vitreous disease, unspecified
H44 Diseases of the eyeball
H45* Lesions of the vitreous body and eyeball in diseases classified elsewhere
H45.0* Hemorrhage into the vitreous body in diseases classified elsewhere
H45.1* Endophthalmitis in diseases classified elsewhere
Endophthalmitis with:
cysticercosis ( B69.1+)
onchocerciasis ( B73+)
toxocariasis ( B83.+)
H45.8* Other lesions of the vitreous body and eyeball in diseases classified elsewhere
DISEASES OF THE OPTIC NERVE AND VISUAL PATHWAY (H46-H48)
H46 Optic neuritis
Optical(s):
neuropathy other than ischemic
papillitis
Retrobulbar neuritis NOS
Excluded: ischemic optic neuropathy ( H47.0)
neuromyelitis of the optic nerve [Devika] ( G36.0)
H47 Other diseases of the optic nerve and visual pathways
H47.0 Diseases of the optic nerve, not elsewhere classified
Compression of the optic nerve. Hemorrhage into the optic nerve sheath. Ischemic optic neuropathy
H47.1 Papilledema, unspecified
H47.2 Optic nerve atrophy. Pallor of the temporal half of the optic disc
H47.3 Other optic disc diseases
Growth on the optic nerve head. False papilledema
H47.4 Optic chiasm lesions
H47.5 Lesions of other parts of the visual pathways
Diseases of the optic tract, geniculate nucleus and optic radiation area
H47.6 Lesions of the visual cortical area
H47.7 Diseases of the visual pathways, unspecified
H48* Disorders of the optic nerve and visual pathways in diseases classified elsewhere
H48.0* Optic nerve atrophy in diseases classified elsewhere
Optic nerve atrophy in late syphilis ( A52.1+)
H48.1* Retrobulbar neuritis in diseases classified elsewhere
Retrobulbar neuritis with:
late syphilis ( A52.1+)
meningococcal infection ( A39.8+)
multiple sclerosis ( G35+)
H48.8* Other lesions of the optic nerve and visual pathways in diseases classified elsewhere
DISEASES OF THE EYE MUSCLES, DISORDERS OF CONSOLIDATED EYE MOVEMENT, ACCOMMODATION AND REFRACTION
(H49-H52)
Excluded: nystagmus and other involuntary eye movements ( H55)
H49 Paralytic strabismus
Excluded: ophthalmoplegia:
internal ( H52.5)
intranuclear ( H51.2)
supranuclear progressive ( G23.1)
H49.0 3rd [oculomotor] nerve palsy
H49.1 4th [trochlear] nerve palsy
H49.2 6th [abducens] nerve palsy
H49.3 Complete (external) ophthalmoplegia
H49.4 Progressive external ophthalmoplegia
H49.8 Other paralytic strabismus. External ophthalmoplegia NOS. Kearns-Sayre syndrome
H49.9 Paralytic strabismus, unspecified
H50 Other forms of strabismus
H50.0 Convergent concomitant strabismus. Esotropia (alternating) (monocular), except intermittent
H50.1 Divergent concomitant strabismus. Exotropia (alternating) (monocular), except intermittent
H50.2 Vertical strabismus
H50.3 Intermittent heterotropia
Intermittent:
esotropia)
exotropia) alternating (monocular)
H50.4 Other and unspecified heterotropies. Concomitant strabismus NOS
Cyclotropia. Hypertropia. Hypotropia. Microtropia. Monofixation syndrome
H50.5 Heterophoria. Alternating heterophoria. Esophoria. Exophoria
H50.6 Mechanical strabismus. Brown's capsule syndrome. Strabismus due to adhesions
Traumatic limitation of the elasticity of the eye muscle
H50.8 Other specified types of strabismus. Duane syndrome
H50.9 Strabismus, unspecified
H51 Other concomitant eye movement disorders
H51.0 Gaze paralysis
H51.1 Convergence insufficiency [convergence insufficient and excessive]
H51.2 Intranuclear ophthalmoplegia
H51.8 Other specified concomitant eye movement disorders
H51.9 Conjugate eye movement disorder, unspecified
H52 Impairments of refraction and accommodation
H52.0 Hypermetropia
H52.1 Myopia
Excludes: malignant myopia ( H44.2)
H52.2 Astigmatism
H52.3 Anisometropia and aniseikonia
H52.4 Presbyopia
H52.5 Accommodation disorders
Internal ophthalmoplegia (complete) (total)
Paresis)
Spasm) accommodation
H52.6 Other refractive errors
H52.7 Refractive error, unspecified
VISUAL DISORDERS AND BLINDNESS (H53-H54)
H53 Visual impairment
H53.0 Amblyopia due to anopsia
Amblyopia caused by:
anisometropia
visual deprivation
squint
H53.1 Subjective visual disorders
Asthenopia. Day blindness. Hemeralopia. Metamorphopsia. Photophobia. Atrial scotoma. Sudden loss of vision
Visual rainbow rings
Excluded: visual hallucinations ( R44.1)
H53.2 Diplopia. Image doubling
H53.3 Other binocular vision disorders. Retinal image discrepancy
Image fusion for stereoscopic defects. Simultaneous visual perception without image fusion
Depression of binocular vision
H53.4 Visual field defects. Extended blind spot. Generalized narrowing of the visual field
Hemionopsia (opposite) (eponymous). Quadrant anopsia
Scotoma:
arcuate
Bjerrum
central
ring-shaped
H53.5 Anomalies of color vision. Achromatopsia. Acquired color vision deficiency. Color blindness
Deuteranomaly. Deuteranopia. Protanomaly. Protanopia. Tritanomaly. Tritanopia
Excludes: day blindness ( H53.1)
H53.6 Night blindness
Excluded: due to lack of vitamin A ( E50.5)
H53.8 Other vision disorders
H53.9 Visual impairment, unspecified
H54 Blindness and decreased vision
Note For categories of visual impairment, see the following table.
Excludes: transient blindness ( G45.3)
H54.0 Blindness in both eyes. Visual impairment categories 3, 4, 5 in both eyes
H54.1 Blindness in one eye, reduced vision in the other eye
Visual impairment categories 3, 4, 5 in one eye and category 1 or 2 in the other eye
H54.2 Reduced vision in both eyes. Category 1 or 2 visual impairment in both eyes
H54.3 Unspecified loss of vision in both eyes. Category 9 visual impairment in both eyes
H54.4 Blindness in one eye. Visual impairment category 3, 4, 5 in one eye [normal visual acuity in the other eye]
H54.5 Decreased vision in one eye. Category 1 or 2 visual impairment in one eye [normal visual acuity in the other eye]
H54.6 Unspecified loss of vision in one eye. Category 9 visual impairment in one eye [normal visual acuity in the other eye]
H54.7 Unspecified vision loss. Visual impairment category 9 NOS
Note The following table shows the classification of the degree of visual impairment recommended
WHO Scientific Group on the Prevention of Blindness, Geneva, 6-10 November 1972 (WHO Technical Report Series, N51 8, 1974).
The term "low vision" in the rubric H54 covers categories 1 and 2 of the table, the term “blindness” covers categories 3, 4 and 5, and the term “unspecified vision loss” covers category 9. If we also take into account the boundaries of the visual field, then patients with a visual field of no more than 10 degrees but more than 5 degrees around the central visual axis should be classified as category 3, and patients with a visual field of no more than 5 degrees around the central axis should be classified as category 4, even if central visual acuity is not impaired.
Category Visual acuity with best possible correction
visual impairment maximum indicator minimum indicator
less than equal or more than
1 6/18 6/60
3/10 (0,3) 1/10 (0,1)
20/70 20/200
2 6/60 3/60
1/10 (0,1) 1/20 (0,5)
20/200 20/400
3 3/60 1/60 (counting fingers
at a distance of 1 m)
1/20 (0,05) 1/50 (0,02)
20/400 5/300 (20/1200)
4 1/60 (counting fingers
at a distance of 1m) Light perception
1/50 (0,02)
5/300
5 Lack of light perception
9 Unspecified or unspecified
OTHER DISEASES OF THE EYE AND ITS ACCIDENTAL APPARATUS (H55-H59)
H55 Nystagmus and other involuntary eye movements
Nystagmus:
NOS
congenital
as a result of visual deprivation
disunited
latent
H57 Other diseases of the eye and its adnexa
H57.0 Anomalies of pupillary function
H57.1 Eye pain
H57.8 Other unspecified diseases of the eye and adnexa
H57.9 Disorder of the eye and adnexa, unspecified
H58* Other lesions of the eye and its adnexa in diseases classified elsewhere
H58.0* Anomalies of pupillary function in diseases classified elsewhere
The phenomenon or pupil of Argyll Robertson is syphilitic ( A52.1+)
H58.1*Visual impairment in diseases classified elsewhere
H58.8* Other disorders of the eye and its adnexa in diseases classified elsewhere
Syphilitic oculopathy NEC:
congenital
early ( A50.0+)
late ( A50.3+)
early (secondary) ( A51.4+)
late ( A52.7+)
H59 Lesions of the eye and its adnexa after medical procedures
Excluded: mechanical complication from:
intraocular lens ( T85.2)
other ocular prosthetic devices, implant
and transplant ( T85.3)
pseudophakia ( Z96.1)
H59.0 Vitreous syndrome after cataract surgery
H59.8 Other lesions of the eye and its adnexa after medical procedures
Chorioretinal scars after surgery for retinal detachment
H59.9 Damage to the eye and its adnexa after medical procedures, unspecified
Diagnosis with code H00-H59 includes 11 clarifying diagnoses (ICD-10 headings):
- H00-H06 - Diseases of the eyelids, lacrimal ducts and orbits
Contains 7 blocks of diagnoses. - H10-H13 - Diseases of the conjunctiva
Contains 3 blocks of diagnoses. - H15-H22 - Diseases of the sclera, cornea, iris and ciliary body
Contains 8 blocks of diagnoses. - H25-H28 - Lens diseases
Contains 4 blocks of diagnoses. - H30-H36 - Diseases of the choroid and retina
Contains 7 blocks of diagnoses. - H40-H42 - Glaucoma
Contains 2 blocks of diagnoses. - H43-H45 - Diseases of the vitreous body and eyeball
Contains 3 blocks of diagnoses. - H46-H48 - Diseases of the optic nerve and visual pathways
Contains 3 blocks of diagnoses. - H49-H52 - Diseases of the eye muscles, disorders of concomitant eye movement, accommodation and refraction
Contains 4 blocks of diagnoses.
Excludes: nystagmus and other involuntary eye movements (H55). - H53-H54 - Visual disturbances and blindness
Contains 2 blocks of diagnoses. - H55-H59 - Other diseases of the eye and its adnexa
Contains 4 blocks of diagnoses.
This class contains the following blocks:
- H00-H06 Diseases of the eyelids, lacrimal ducts and orbits
- H10-H13 Diseases of the conjunctiva
- H15-H22 Diseases of the sclera, cornea, iris and ciliary body
- H25-H28 Lens diseases
- H30-H36 Diseases of the choroid and retina
- H40-H42 Glaucoma
- H43-H45 Diseases of the vitreous body and eyeball
- H46-H48 Diseases of the optic nerve and visual pathways
- H49-H52 Diseases of the eye muscles, disorders of concomitant eye movement, accommodation and refraction
- H53-H54 Visual disturbances and blindness
- H55-H59 Other diseases of the eye and its adnexa
The following categories are marked with an asterisk:
- H03* Lesions of the eyelid in diseases classified elsewhere
- H06* Lesions of the lacrimal apparatus and orbit in diseases classified elsewhere
- H13* Lesions of the conjunctiva in diseases classified elsewhere
- H19* Lesions of the sclera and cornea in diseases classified elsewhere
- H22* Lesions of the iris and ciliary body in diseases classified elsewhere
- H28* Cataracts and other lesions of the lens in diseases classified elsewhere
- H32* Chorioretinal disorders in diseases classified elsewhere
- H36* Retinal disorders in diseases classified elsewhere
- H42* Glaucoma in diseases classified elsewhere
- H45* Lesions of the vitreous body and eyeball in diseases classified elsewhere
- H48* Lesions of the optic nerve and visual pathways in diseases classified elsewhere
- H58* Other lesions of the eye and its adnexa in diseases classified elsewhere
