LA31.2

ICD-11 MMS 2026-01

Ankyloglossia

Description

A condition of the tongue, caused by short, tight, lingual frenulum or fusion of the tongue to the floor of the mouth. This condition is characterised by difficulty in speech articulation due to limitation or restriction in tongue movement.

Index terms

  • Ankyloglossia
  • Aberrant insertion of frenum of tongue
  • Aberrant insertion of labial frenulum
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  • Tongue tie
  • short frenulum linguae
  • short frenulum of tongue

Inclusions

  • Tongue tie

Exclusions from above levels

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

Sibling codes

  • LA31.0 – Congenital macroglossia
  • LA31.1 – Hypoglossia or aglossia
  • 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

Ankyloglossia – http://id.who.int/icd/entity/1838543063

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