AB51.Z

ICD-11 MMS 2026-01

Acquired hearing impairment, unspecified

Exclusions from above levels

  • AB37 – noise-induced hearing loss
  • AB52 – deafness NOS
  • AB53 – Ototoxic hearing loss
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  • AB55 – Sudden idiopathic hearing loss
  • AB5Y – Deaf mutism, not elsewhere classified
  • AB33 – Otosclerosis
  • 01 – Certain infectious or parasitic diseases
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • 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

Foundation entity

Acquired hearing impairment – http://id.who.int/icd/entity/500439897

Allowed postcoordination axes

Part of: AB51: Acquired hearing impairment › 10: Diseases of the ear or mastoid process