LB60

ICD-11 MMS 2026-01

Breast aplasia

Description

A condition caused by failure of the breast to develop during the antenatal period. This condition is characterised by a total lack of breast tissue. This condition may also present with absence of the nipple or pectoral muscle.

Index terms

  • Breast aplasia
  • Congenital absence of breast with absent nipple
  • absent nipple in amastia
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  • agenesis of breast with absent nipple
  • Breast aplasia, unilateral
  • Breast aplasia, bilateral

Exclusions from above levels

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

Sibling codes

  • LB61 – Absent nipple
  • LB62 – Supernumerary breasts
  • LB63 – Accessory nipple
  • LB6Y – Other specified structural developmental anomalies of the breast
  • LB6Z – Structural developmental anomalies of the breast, unspecified

Foundation entity

Breast aplasia – http://id.who.int/icd/entity/866434212

Allowed postcoordination axes

Part of: 20: Developmental anomalies