DA0E.00

ICD-11 MMS 2026-01

Micrognathia

Description

Apparently reduced length and width of the mandible when viewed from the front but not from the side. This is a bundled term comprising shortening and narrowing of the mandible and chin.

Index terms

  • Micrognathia
  • Congenital micrognathia
  • congenital micrognathism
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  • Acquired micrognathia

Excludes

  • LA56 – Pierre Robin syndrome

Exclusions from above levels

  • 5A60.0 – acromegaly
  • LA52 – hemifacial atrophy or hypertrophy
  • LA56 – Robin's syndrome
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  • 01 – Certain infectious or parasitic diseases
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
  • 06 – Mental, behavioural or neurodevelopmental disorders
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • DA0E.0Y – Other specified major anomalies of jaw size
  • DA0E.0Z – Major anomalies of jaw size, unspecified

Foundation entity

Micrognathia – http://id.who.int/icd/entity/1457759945

Allowed postcoordination axes

Part of: DA0E.0: Major anomalies of jaw size › DA0E: Dentofacial anomalies › 13: Diseases of the digestive system