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ICD-10 • Chapter VII: Diseases of the eye and adnexa (H00–H59)
Quick guide by blocks. The search below highlights terms and codes throughout the chapter.
Last updated: November 2025
H00–H06 Disorders of eyelid, lacrimal apparatus and orbit
| Code |
Description |
| H00 |
Hordeolum and chalazion |
| H01 |
Other inflammations of eyelid |
| H02 |
Other disorders of eyelid |
| H03 |
Disorders of eyelid in diseases classified elsewhere |
| H04 |
Disorders of lacrimal apparatus |
| H05 |
Disorders of orbit |
| H06 |
Disorders of lacrimal apparatus and orbit in diseases classified elsewhere |
H10–H13 Disorders of conjunctiva
| Code |
Description |
| H10 |
Conjunctivitis |
| H11 |
Other disorders of conjunctiva |
| H13 |
Disorders of conjunctiva in diseases classified elsewhere |
H15–H22 Disorders of sclera, cornea, iris and ciliary body
| Code |
Description |
| H15 |
Disorders of sclera |
| H16 |
Keratitis |
| H17 |
Corneal scars and opacities |
| H18 |
Other disorders of cornea |
| H19 |
Disorders of sclera and cornea in diseases classified elsewhere |
| H20 |
Iridocyclitis |
| H21 |
Other disorders of iris and ciliary body |
| H22 |
Disorders of iris and ciliary body in diseases classified elsewhere |
H25–H28 Disorders of lens
| Code |
Description |
| H25 |
Senile cataract |
| H26 |
Other cataracts |
| H27 |
Other disorders of lens |
| H28 |
Cataract and other disorders of lens in diseases classified elsewhere |
H30–H36 Disorders of choroid and retina
| Code |
Description |
| H30 |
Chorioretinal inflammation |
| H31 |
Other disorders of choroid |
| H32 |
Chorioretinal disorders in diseases classified elsewhere |
| H33 |
Retinal detachments and breaks |
| H34 |
Retinal vascular occlusions |
| H35 |
Other retinal disorders |
| H36 |
Retinal disorders in diseases classified elsewhere |
H40–H42 Glaucoma
| Code |
Description |
| H40 |
Glaucoma |
| H42 |
Glaucoma in diseases classified elsewhere |
H43–H45 Disorders of vitreous body and globe
| Code |
Description |
| H43 |
Disorders of vitreous body |
| H44 |
Disorders of globe |
| H45 |
Disorders of vitreous body and globe in diseases classified elsewhere |
H46–H48 Disorders of optic nerve and visual pathways
| Code |
Description |
| H46 |
Optic neuritis |
| H47 |
Other disorders of optic nerve and visual pathways |
| H48 |
Disorders of optic nerve [second cranial nerve] and visual pathways in diseases classified elsewhere |
H49–H52 Disorders of ocular muscles, binocular movement, accommodation and refraction
| Code |
Description |
| H49 |
Paralytic strabismus |
| H50 |
Other strabismus |
| H51 |
Other disorders of binocular movement |
| H52 |
Disorders of refraction and accommodation |
H53–H54 Visual disturbances and blindness
| Code |
Description |
| H53 |
Visual disturbances |
| H54 |
Blindness and low vision |
H55–H59 Other disorders of eye and adnexa
| Code |
Description |
| H55 |
Nystagmus and other irregular eye movements |
| H57 |
Other disorders of eye and adnexa |
| H58 |
Other disorders of eye and adnexa in diseases classified elsewhere |
| H59 |
Postprocedural disorders of eye and adnexa, not elsewhere classified |
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