ICD-10 Chapter H

(H00-H06) Disorders of eyelid, lacrimal system and orbit

 * Hordeolum and chalazion
 * Hordeolum and other deep inflammation of eyelid
 * Chalazion
 * Other inflammation of eyelid
 * Blepharitis
 * Noninfectious dermatoses of eyelid
 * Other disorders of eyelid
 * Entropion and trichiasis of eyelid
 * Ectropion of eyelid
 * Lagophthalmos
 * Blepharochalasis
 * Ptosis of eyelid
 * Other disorders affecting eyelid function
 * Xanthelasma of eyelid
 * Other degenerative disorders of eyelid and periocular area
 * Disorders of eyelid in diseases classified elsewhere
 * Disorders of lacrimal system
 * Dacryoadenitis
 * Other disorders of lacrimal gland
 * Epiphora
 * Acute and unspecified inflammation of lacrimal passages
 * Chronic inflammation of lacrimal passages
 * Stenosis and insufficiency of lacrimal passages
 * Other changes in lacrimal passages
 * Disorders of orbit
 * Exophthalmic conditions
 * Enophthalmos
 * Disorders of lacrimal system and orbit in diseases classified elsewhere

(H10-H13) Disorders of conjunctiva

 * Conjunctivitis
 * Other disorders of conjunctiva
 * Pterygium
 * (H11.3) Conjunctival haemorrhage
 * Subconjunctival haemorrhage
 * Disorders of conjunctiva in diseases classified elsewhere

(H15-H19) Disorders of sclera and cornea

 * Disorders of sclera
 * Scleritis
 * Episcleritis


 * Keratitis
 * Corneal ulcer
 * Other superficial keratitis without conjunctivitis
 * Photokeratitis
 * Snow blindness
 * Keratoconjunctivitis
 * Interstitial and deep keratitis
 * Corneal neovascularization


 * Corneal scars and opacities


 * Other disorders of cornea
 * Corneal pigmentations and deposits
 * Haematocornea
 * Kayser-Fleischer ring
 * Krukenberg's spindle
 * Staehli's line
 * Bullous keratopathy
 * Other corneal oedema
 * Changes in corneal membranes
 * Corneal degeneration
 * Arcus senilis
 * Band keratopathy
 * Hereditary corneal dystrophies
 * Fuchs' dystrophy
 * Keratoconus
 * Other corneal deformities
 * Other specified disorders of cornea
 * Disorder of cornea, unspecified


 * Disorders of sclera and cornea in diseases classified elsewhere
 * Scleritis and episcleritis in diseases classified elsewhere
 * Herpesviral keratitis and keratoconjunctivitis
 * Keratitis and keratoconjunctivitis in other infectious and parasitic diseases
 * Keratitis and keratoconjunctivitis in other diseases classified elsewhere
 * Keratoconjunctivitis sicca
 * Other disorders of sclera and cornea in diseases classified elsewhere

(H20-H22) Disorders of iris and ciliary body

 * Iridocyclitis
 * Acute and subacute iridocyclitis
 * Iritis


 * Other disorders of iris and ciliary body
 * Hyphaema
 * Other vascular disorders of iris and ciliary body
 * Degeneration of iris and ciliary body
 * Heterochromia iridis
 * Cyst of iris, ciliary body and anterior chamber
 * Pupillary membranes
 * Other adhesions and disruptions of iris and ciliary body
 * Other specified disorders of iris and ciliary body
 * Disorder of iris and ciliary body, unspecified


 * Disorders of iris and ciliary body in diseases classified elsewhere

(H25-H28) Disorders of lens

 * Senile cataract
 * Other cataract
 * Other disorders of lens
 * Aphakia
 * Dislocation of lens
 * Cataract and other disorders of lens in diseases classified elsewhere

(H30-H36) Disorders of choroid and retina

 * Chorioretinal inflammation
 * Other disorders of choroid
 * Chorioretinal disorders in diseases classified elsewhere
 * Retinal detachments and breaks
 * Retinoschisis and retinal cysts
 * Retinal vascular occlusions
 * Other retinal disorders
 * Background retinopathy and retinal vascular changes
 * Hypertensive retinopathy
 * Retinopathy of prematurity
 * Degeneration of macula and posterior pole
 * Macular degeneration
 * Hereditary retinal dystrophy
 * Retinitis pigmentosa
 * Retinal haemorrhage
 * Other specified retinal disorders
 * (H35.81) Cystoid macular edema
 * Retinal disorders in diseases classified elsewhere

(H40-H42) Glaucoma

 * Glaucoma
 * Glaucoma suspect
 * Ocular hypertension
 * Primary open-angle glaucoma
 * Primary angle-closure glaucoma
 * Glaucoma secondary to eye trauma
 * Glaucoma secondary to eye inflammation
 * Glaucoma secondary to other eye disorders
 * Glaucoma secondary to drugs
 * Glaucoma in diseases classified elsewhere

(H43-H45) Disorders of vitreous body and globe

 * Disorders of vitreous body
 * Disorder of vitreous body, unspecified
 * Floater
 * Disorders of globe
 * Other endophthalmitis
 * Sympathetic uveitis
 * Disorders of vitreous body and globe in diseases classified elsewhere

(H46-H48) Disorders of optic nerve and visual pathways

 * Optic neuritis
 * Other disorders of optic (2nd) nerve and visual pathways
 * Papilloedema, unspecified
 * Optic atrophy
 * Disorders of optic (2nd) nerve and visual pathways in diseases classified elsewhere

(H49-H52) Disorders of ocular muscles, binocular movement, accommodation and refraction

 * Paralytic strabismus
 * Third (oculomotor) nerve palsy
 * Fourth (trochlear) nerve palsy
 * Congenital fourth nerve palsy
 * Sixth (abducent) nerve palsy
 * Total (external) ophthalmoplegia
 * Progressive external ophthalmoplegia
 * Other paralytic strabismus
 * External ophthalmoplegia NOS
 * Kearns-Sayre syndrome
 * Paralytic strabismus, unspecified


 * Other strabismus
 * Convergent concomitant strabismus
 * Esotropia (alternating)(monocular), except intermittent
 * Divergent concomitant strabismus
 * Exotropia (alternating)(monocular), except intermittent
 * Vertical strabismus
 * Hypertropia
 * Hypotropia
 * Intermittent heterotropia
 * Other and unspecified heterotropia
 * Concomitant strabismus NOS
 * Cyclotropia
 * Microtropia
 * Monofixation syndrome
 * Heterophoria
 * Alternating hyperphoria
 * Esophoria
 * Exophoria
 * Mechanical strabismus
 * Brown's sheath syndrome
 * Strabismus due to adhesions
 * Traumatic limitation of duction of eye muscle
 * Other specified strabismus
 * Duane syndrome
 * Strabismus, unspecified


 * Other disorders of binocular movement
 * Palsy of conjugate gaze
 * Convergence insufficiency and excess
 * Internuclear ophthalmoplegia
 * Other specified disorders of binocular movement
 * Disorder of binocular movement, unspecified


 * Disorders of refraction and accommodation
 * Hypermetropia
 * Myopia
 * Astigmatism
 * Anisometropia and aniseikonia
 * Presbyopia
 * Disorders of accommodation
 * Other disorders of refraction
 * Disorder of refraction, unspecified

(H53-H54) Visual disturbances and blindness

 * Visual disturbances
 * Amblyopia ex anopsia
 * Amblyopia
 * Subjective visual disturbances
 * Asthenopia
 * Hemeralopia
 * Metamorphopsia
 * Photophobia
 * Scintillating scotoma
 * Diplopia
 * Other disorders of binocular vision
 * Visual field defects
 * Scotoma
 * Binasal hemianopsia
 * Bitemporal hemianopsia
 * Colour vision deficiencies
 * Achromatopsia
 * Night blindness
 * Blindness and low vision

(H55-H59) Other disorders of eye and adnexa

 * Nystagmus and other irregular eye movements
 * Other disorders of eye and adnexa
 * Anomalies of pupillary function
 * Miosis
 * Mydriasis
 * Ocular pain
 * Disorder of eye and adnexa, unspecified
 * Red eye
 * Other disorders of eye and adnexa in diseases classified elsewhere
 * Anomalies of pupillary function in diseases classified elsewhere
 * Argyll Robertson phenomenon or pupil, syphilitic
 * Postprocedural disorders of eye and adnexa, not elsewhere classified

(H60-H62) Diseases of external ear

 * Otitis externa
 * Other disorders of external ear
 * Disorders of external ear in diseases classified elsewhere

(H65-H75) Diseases of middle ear and mastoid

 * Nonsuppurative otitis media
 * Suppurative and unspecified otitis media
 * Otitis media in diseases classified elsewhere
 * Eustachian salpingitis andobstruction
 * Other disorders of Eustachian tube
 * Mastoiditis and related conditions
 * Cholesteatoma of middle ear
 * Perforation of tympanic membrane
 * Other disorders of tympanic membrane
 * Other disorders of middle ear and mastoid
 * Other disorders of middle ear and mastoid in diseases classified elsewhere

(H80-H83) Diseases of inner ear

 * Otosclerosis
 * Disorders of vestibular function
 * Ménière's disease
 * Benign paroxysmal vertigo
 * Vestibular neuronitis
 * Other peripheral vertigo
 * Vertigo of central origin
 * Vertiginous syndromes in diseases classified elsewhere
 * Other diseases of inner ear
 * Labyrinthitis
 * Labyrinthine fistula
 * Labyrinthine dysfunction
 * Noise effects on inner ear

(H90-H95) Other disorders of ear

 * Conductive and sensorineural hearing loss


 * Conductive hearing loss, bilateral
 * Conductive hearing loss, unilateral with unrestricted hearing on the contralateral side
 * Conductive hearing loss, unspecified
 * Sensorineural hearing loss, bilateral
 * Sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side
 * Sensorineural hearing loss, unspecified
 * Mixed conductive and sensorineural hearing loss, bilateral
 * Mixed conductive and sensorineural hearing loss, unilateral with unrestricted hearing on the contralateral side
 * Mixed conductive and sensorineural hearing loss, unspecified


 * Other hearing loss
 * Ototoxic hearing loss
 * Presbycusis
 * Sudden idiopathic hearing loss
 * Deaf mutism, not elsewhere classified
 * Other specified hearing loss
 * Hearing loss, unspecified


 * Otalgia and effusion of ear
 * Otalgia
 * Otorrhoea
 * Otorrhagia


 * Other disorders of ear, not elsewhere classified
 * Degenerative and vascular disorders of ear
 * Tinnitus
 * Other abnormal auditory perceptions
 * Disorders of acoustic nerve
 * Other specified disorders of ear
 * Disorder of ear, unspecified


 * Other disorders of ear in diseases classified elsewhere


 * Postprocedural disorders of ear and mastoid process, not elsewhere classified