LB78.1

ICD-11 MMS 2026-01

Polysyndactyly

Description

Polysyndactyly is a form of preaxial polydactyly of fingers characterised by the presence of a thumb showing the mildest degree of duplication, being broad, bifid or with radially deviated distal phalanx. Syndactyly of various degrees of third-and-fourth fingers is occasionally present. Two forms have been characterised: unilateral and bilateral.

Index terms

  • Polysyndactyly
  • polysyndactyly syndrome
  • syndactyly of multiple and unspecified sites
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  • syndactyly of multiple digits
  • Polysyndactyly, unilateral
  • Polysyndactyly, bilateral

Exclusions from above levels

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

Sibling codes

  • LB78.0 – Polydactyly of the thumb
  • LB78.2 – Postaxial polydactyly of fingers
  • LB78.3 – Polydactyly of toes
  • LB78.Y – Other specified polydactyly
  • LB78.Z – Polydactyly, unspecified

Foundation entity

Polysyndactyly – http://id.who.int/icd/entity/973656080

Allowed postcoordination axes

Part of: LB78: Polydactyly › 20: Developmental anomalies