GB21

ICD-11 MMS 2026-01

Inflammatory disorders of breast

Description

Any disorder of the breast or breast tissue, characterised by inflammatory effects, pain, heat, redness, swelling, and loss of function.

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

Child codes

  • GB21.0 – Breast abscess
  • GB21.Y – Other specified inflammatory disorders of breast
  • GB21.Z – Inflammatory disorders of breast, unspecified

Foundation children elsewhere

  • JB45.1 – Nonpurulent mastitis associated with childbirth
  • KA65.3 – Neonatal infectious mastitis

Sibling codes

  • GB20 – Benign breast disease
  • GB22 – Hypertrophy of breast
  • GB23 – Certain specified disorders of breast
  • GB2Y – Other specified disorders of breast

Foundation entity

Inflammatory disorders of breast – http://id.who.int/icd/entity/259204343

Allowed postcoordination axes

Part of: 16: Diseases of the genitourinary system