LA22.1

ICD-11 MMS 2026-01

Anotia

Description

Complete absence of any auricular structures.

Index terms

  • Anotia
  • Congenital absence of auricle
  • Congenital absence of ear auricle
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  • absence of auricle
  • absence of ear auricle
  • agenesis of ear auricle
  • agenesis of external ear
  • congenital absence of external ear
  • congenital absence of pinna

Exclusions from above levels

  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LA22.0 – Microtia
  • LA22.2 – Aplasia or hypoplasia of external auditory canal
  • LA22.3 – Structural developmental anomalies of ear ossicles
  • LA22.4 – Structural developmental anomalies of inner ear
  • LA22.Y – Other specified structural developmental anomalies of ear causing hearing impairment
  • LA22.Z – Structural developmental anomalies of ear causing hearing impairment, unspecified

Foundation entity

Anotia – http://id.who.int/icd/entity/2056675356

Allowed postcoordination axes

Part of: LA22: Structural developmental anomalies of ear causing hearing impairment › 20: Developmental anomalies