LC31

ICD-11 MMS 2026-01

Developmental defects of the nail apparatus

Description

Congenital malformations of the nail apparatus.

Index terms

  • Developmental defects of the nail apparatus
  • congenital abnormalities of the nails
  • congenital deformity of nail
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  • congenital malformation of nail
  • developmental defects of the nail plate
  • Congenital nail hypertrophy
  • Congenital nail thickening
  • Congenital onychauxis
  • Congenital pachyonychia
  • Congenital malalignment of the great toenails
  • Congenital hypertrophy of the lateral fold of the hallux
  • Congenital onychodystrophy

Inclusions

  • congenital abnormalities of the nails

Exclusions from above levels

  • 5C58.12 – Congenital erythropoietic porphyria
  • 5C64.20 – Acrodermatitis enteropathica
  • EG63 – pilonidal cyst or sinus
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  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LC30 – Developmental defects of hair or hair growth

Foundation entity

Developmental defects of the nail apparatus – http://id.who.int/icd/entity/684964464

Allowed postcoordination axes

Part of: 20: Developmental anomalies