GB23.4

ICD-11 MMS 2026-01

Galactorrhoea not associated with childbirth

Description

A condition of the breast, characterised by persistent and abnormal secretion of white discharge. In females, the secretions occur between intervals of neonate or infant nursing, or after the infant has stopped breastfeeding. In males and children, these secretions occur spontaneously. This condition is not associated with the physiological changes as part of pregnancy, childbirth, or the puerperium.

Index terms

  • Galactorrhoea not associated with childbirth
  • nonpuerperal lactation

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
  • GB23.3 – Atrophy of breast
  • GB23.5 – Mastodynia

Foundation entity

Galactorrhoea not associated with childbirth – http://id.who.int/icd/entity/420032709

Allowed postcoordination axes

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