LB78.0

ICD-11 MMS 2026-01

Polydactyly of the thumb

Description

A condition caused by development of supernumerary thumbs during the antenatal period.

Index terms

  • Polydactyly of the thumb
  • Polydactyly of a biphalangeal thumb
  • accessory thumb
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  • extra thumb
  • supernumerary thumb
  • Polydactyly of the thumb, unilateral
  • Polydactyly of the thumb, bilateral

Exclusions from above levels

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

Sibling codes

  • LB78.1 – Polysyndactyly
  • LB78.2 – Postaxial polydactyly of fingers
  • LB78.3 – Polydactyly of toes
  • LB78.Y – Other specified polydactyly
  • LB78.Z – Polydactyly, unspecified

Foundation entity

Polydactyly of the thumb – http://id.who.int/icd/entity/555718563

Allowed postcoordination axes

Part of: LB78: Polydactyly › 20: Developmental anomalies