GB23.1

ICD-11 MMS 2026-01

Fissure or fistula of nipple

Description

A condition characterised by the formation of a deep furrow or crack-like lesion on the nipple and an abnormal passage between the nipple and adjacent tissues or surfaces.

Index terms

  • Fissure or fistula of nipple
  • Fissure of nipple
  • Fistula of nipple
Show allHide
  • Cracked nipple

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
Show allHide
  • 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
  • GB23.2 – Fat necrosis of breast
  • GB23.3 – Atrophy of breast
  • GB23.4 – Galactorrhoea not associated with childbirth
  • GB23.5 – Mastodynia

Foundation entity

Fissure or fistula of nipple – http://id.who.int/icd/entity/1839489084

Allowed postcoordination axes

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