LA31.1

ICD-11 MMS 2026-01

Hypoglossia or aglossia

Description

Isolated aglossia and hypoglossia are terms covering the spectrum from partial to total absence of the tongue. These congenital malformations have been classified as part of the group of oromandibular-limb hypogenesis syndromes (OLHS).

Index terms

  • Hypoglossia or aglossia
  • Aglossia
  • congenital absence of tongue
Show allHide
  • congenitally absent tongue
  • tongue agenesis
  • Hypoglossia
  • congenital hypoplasia of tongue
  • congenitally hypoplastic tongue
  • microglossia

Exclusions from above levels

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

Sibling codes

  • LA31.0 – Congenital macroglossia
  • LA31.2 – Ankyloglossia
  • LA31.3 – Macrostomia
  • LA31.4 – Microstomia
  • LA31.Y – Other specified structural developmental anomalies of mouth or tongue
  • LA31.Z – Structural developmental anomalies of mouth or tongue, unspecified

Foundation entity

Hypoglossia or aglossia – http://id.who.int/icd/entity/2087939516

Part of: LA31: Structural developmental anomalies of mouth or tongue › 20: Developmental anomalies