ICD 11 codes (A)

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ICD 11 codes (A)


ICD stands for International Classification of Diseases and ICD 11 is the 11th revision.

The International Classification of Diseases 11th Revision (ICD-11) is a global standard for health information and diagnostics. Developed by the WHO, ICD-11 provides a systematic framework for classifying diseases, disorders, injuries, and other related health conditions. This classification allows for detailed analysis of health trends and statistics worldwide, assisting in informing public health and clinical decision-making.

ICD-11 was officially adopted by the WHO in May 2019, marking a significant update from its predecessor, ICD-10. The new revision is fully electronic and has been designed to be more accessible and easier to implement, which is a significant shift from the paper-based ICD-10. Learn more...

ICD 11 Code ICD 11 Description
-Diseases of the ear or mastoid process
-- Diseases of external ear
-- - Otitis externa
-- --Infectious diseases of external ear
AA00 - - - - Abscess of external ear
AA01 - - - - Cellulitis of external ear
AA02 - - - - Malignant otitis externa
AA03 - - - - Otomycosis
AA04 - - - - Perichondritis of external ear
AA0Y - - - - Other specified infectious diseases of external ear
AA0Z - - - - Infectious diseases of external ear, unspecified
-- --Noninfectious inflammation of external ear
AA10 - - - - Seborrhoeic otitis externa
AA11 - - - - Acute noninfectious otitis externa
AA12 - - - - Chondrodermatitis nodularis
AA13 - - - - Chronic otitis externa
AA1Y - - - - Other specified noninfectious inflammation of external ear
AA1Z - - - - Noninfectious inflammation of external ear, unspecified
AA3Z - - - Otitis externa, unspecified
-- - Noninflammatory disorders of the external ear
AA40 - - - Acquired deformity of external auditory canal
AA40.0 - - - - Exostosis of external auditory canal
AA40.1 - - - - Acquired stenosis of external auditory canal
AA40.2 - - - - Cholesteatoma of external auditory canal
AA40.Y - - - - Other specified acquired deformity of external auditory canal
AA41 - - - Acquired deformity of pinna
AA41.0 - - - - Cauliflower ear
AA41.Y - - - - Other specified acquired deformity of pinna
AA42 - - - Impacted cerumen
AA4Y - - - Other specified noninflammatory disorders of the external ear
AA4Z - - - Noninflammatory disorders of the external ear, unspecified
AA6Z - - Diseases of external ear, unspecified
-- Diseases of middle ear or mastoid
-- - Otitis media
-- --Nonsuppurative otitis media
AA80 - - - - Acute serous or mucoid otitis media
AA81 - - - - Acute nonserous nonsuppurative otitis media
AA82 - - - - Chronic serous or mucoid otitis media
AA83 - - - - Noninfected otitis media with effusion
AA8Z - - - - Nonsuppurative otitis media, unspecified
-- --Suppurative otitis media
AA90 - - - - Acute suppurative otitis media
AA91 - - - - Chronic suppurative otitis media
AA91.0 - - - - - Chronic tubotympanic suppurative otitis media
AA91.1 - - - - - Chronic atticoantral suppurative otitis media
AA91.2 - - - - - Other chronic suppurative otitis media
AA91.Z - - - - - Chronic suppurative otitis media, unspecified
AA9Y - - - - Other specified suppurative otitis media
AA9Z - - - - Suppurative otitis media, unspecified
AB00 - - - Acute otitis media
AB01 - - - Chronic otitis media
AB0Y - - - Other specified otitis media
AB0Z - - - Otitis media, unspecified
AB10 - - Disorders of Eustachian tube
AB10.0 - - - Diverticulum of Eustachian tube
AB10.1 - - - Patulous Eustachian tube
AB10.2 - - - Eustachian salpingitis
AB10.3 - - - Obstruction of Eustachian tube
AB10.Y - - - Other specified disorders of Eustachian tube
AB10.Z - - - Disorders of Eustachian tube, unspecified
AB11 - - Mastoiditis or related conditions
AB11.0 - - - Acute mastoiditis
AB11.1 - - - Chronic mastoiditis
AB11.2 - - - Petrositis
AB11.3 - - - Mastoiditis, not elsewhere classified
AB11.Y - - - Other specified mastoiditis or related conditions
AB11.Z - - - Mastoiditis or related conditions, unspecified
AB12 - - Cholesteatoma of middle ear
AB13 - - Perforation of tympanic membrane
AB13.0 - - - Central perforation of tympanic membrane
AB13.1 - - - Attic perforation of tympanic membrane
AB13.2 - - - Other marginal perforations of tympanic membrane
AB13.Y - - - Other specified perforation of tympanic membrane
AB13.Z - - - Perforation of tympanic membrane, unspecified
AB14 - - Acute myringitis
AB15 - - Chronic myringitis
AB16 - - Tympanosclerosis
AB17 - - Adhesive middle ear disease
AB18 - - Discontinuity or dislocation of ear ossicles
AB19 - - Acquired abnormalities of ear ossicles not related to discontinuity or dislocation
AB1A - - Polyp of middle ear
AB1A.0 - - - Aural polyp
AB1A.Y - - - Other specified polyp of middle ear
AB1A.Z - - - Polyp of middle ear, unspecified
AB1B - - Middle ear cicatrix
AB1Y - - Other specified diseases of middle ear or mastoid
AB1Z - - Diseases of middle ear or mastoid, unspecified
-- Diseases of inner ear
AB30 - - Acute vestibular syndrome
AB30.0 - - - Vestibular neuritis
AB30.1 - - - Labyrinthitis
AB30.Y - - - Other specified acute vestibular syndrome
AB30.Z - - - Acute vestibular syndrome, unspecified
AB31 - - Episodic vestibular syndrome
AB31.0 - - - Meniere disease
AB31.1 - - - Vestibular migraine
AB31.2 - - - Benign positional paroxysmal vertigo
AB31.3 - - - Superior canal dehiscence syndrome
AB31.4 - - - Disembarkment syndrome
AB31.5 - - - Autoimmune inner ear disease
AB31.6 - - - Vestibular paroxysmia
AB31.7 - - - Vertiginous syndromes
AB31.Y - - - Other specified episodic vestibular syndrome
AB31.Z - - - Episodic vestibular syndrome, unspecified
AB32 - - Chronic vestibular syndrome
AB32.0 - - - Persistent Postural-Perceptual Dizziness
AB32.1 - - - Chronic unilateral idiopathic vestibulopathy
AB32.2 - - - Persistent unilateral vestibulopathy after vestibular neuronitis
AB32.3 - - - Unilateral vestibulopathy due to schwannoma
AB32.4 - - - Unilateral vestibulopathy after medical intervention
AB32.5 - - - Chronic bilateral vestibulopathy
AB32.Y - - - Other specified chronic vestibular syndrome
AB32.Z - - - Chronic vestibular syndrome, unspecified
AB33 - - Otosclerosis
AB34 - - Disorders of vestibular function
AB34.0 - - - Idiopathic bilateral vestibulopathy
AB34.1 - - - Other peripheral vertigo
AB34.Y - - - Other specified disorders of vestibular function
AB34.Z - - - Disorders of vestibular function, unspecified
AB35 - - Labyrinthine fistula
AB36 - - Labyrinthine dysfunction
AB37 - - Noise effects on inner ear
AB3Y - - Other specified diseases of inner ear
AB3Z - - Diseases of inner ear, unspecified
-- Disorders with hearing impairment
AB50 - - Congenital hearing impairment
AB50.0 - - - Congenital conductive hearing loss
AB50.1 - - - Congenital sensorineural hearing loss
AB50.2 - - - Congenital mixed conductive and sensorineural hearing loss
AB50.Y - - - Other specified congenital hearing impairment
AB50.Z - - - Congenital hearing impairment, unspecified
AB51 - - Acquired hearing impairment
AB51.0 - - - Acquired conductive hearing loss
AB51.1 - - - Acquired sensorineural hearing loss
AB51.2 - - - Acquired mixed conductive and sensorineural hearing loss
AB51.Y - - - Other specified acquired hearing impairment
AB51.Z - - - Acquired hearing impairment, unspecified
AB52 - - Deafness not otherwise specified
AB53 - - Ototoxic hearing loss
AB54 - - Presbycusis
AB55 - - Sudden idiopathic hearing loss
AB56 - - Hereditary hearing loss
AB57 - - Auditory synaptopathy or neuropathy
AB5Y - - Other specified disorders with hearing impairment
AB5Z - - Disorders with hearing impairment, unspecified
-- Disorders of ear, not elsewhere classified
AB70 - - Otalgia or effusion of ear
AB70.0 - - - Otorrhoea
AB70.1 - - - Otorrhagia
AB70.2 - - - Otalgia
AB71 - - Degenerative or vascular disorders of ear
AB72 - - Disorders of acoustic nerve
AB72.0 - - - Acoustic neuritis
AB72.Y - - - Other specified disorders of acoustic nerve
AB72.Z - - - Disorders of acoustic nerve, unspecified
AB73 - - Atrophy ear
AB7Y - - Other specified disorders of ear, not elsewhere classified
-- Postprocedural disorders of ear or mastoid process
AB90 - - Recurrent cholesteatoma of postmastoidectomy cavity
AB91 - - Mucosal cyst of postmastoidectomy cavity
AB92 - - Granulation of postmastoidectomy cavity
AB93 - - Chronic inflammation of postmastoidectomy cavity
AC0Y - Other specified diseases of the ear or mastoid process]]
AC0Z - Diseases of the ear or mastoid process, unspecified]]
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Contributors: Prab R. Tumpati, MD