GB23.3

ICD-11 MMS 2026-01

Atrophy of breast

Description

A condition of the breast, caused by apoptosis of the cells commonly due to prolonged estrogen reduction, diminished cellular proliferation, decreased cellular volume, decreased function, ischaemia, malnutrition, disease, or mutation. This condition is characterised by a partial or complete decrease in size and function of the breast tissue.

Index terms

  • Atrophy of breast
  • Hypoplasia of breast
  • hypoplastic breast
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  • mammary hypoplasia

Exclusions from above levels

  • JB46 – Certain specified disorders of breast or lactation associated with childbirth
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • GB23.0 – Mammary duct ectasia
  • GB23.1 – Fissure or fistula of nipple
  • GB23.2 – Fat necrosis of breast
  • GB23.4 – Galactorrhoea not associated with childbirth
  • GB23.5 – Mastodynia

Foundation entity

Atrophy of breast – http://id.who.int/icd/entity/2084765009

Allowed postcoordination axes

Part of: GB23: Certain specified disorders of breast › 16: Diseases of the genitourinary system