3A00.0

ICD-11 MMS 2026-01

Acquired iron deficiency anaemia due to blood loss

Description

Chronic blood loss is a possible cause in every case of iron-deficiency anaemia. Iron deficiency anaemia may be caused by acute bleeding in gastrointestinal tract, uterus or genitourinary system, copious menstrual blood losses (menorrhagia) and multiple blood donations. In many tropical countries, infestations with hookworms lead to intestinal blood losses that in some individuals can be considerable. Iron deficiency may also be caused by several circumstances related to “chronic posthaemorrhagic anaemia”. A diagnosis of iron deficiency should always lead to a search for pathologic causes of blood loss (e.g. tumours in the gastrointestinal tract or uterus, especially if uterine bleedings have increased or changed in regularity).

Excludes

  • KA8C – congenital anaemia from fetal blood loss

Exclusions from above levels

  • 04 – Diseases of the immune system
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth or the puerperium
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  • 19 – Certain conditions originating in the perinatal period
  • 20 – Congenital malformations, deformations or chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes
  • http://id.who.int/icd/entity/1000704511 – Human immunodeficiency virus disease
  • JB64.1 – Other diseases of the blood or blood-forming organs or certain disorders involving the immune mechanism complicating pregnancy, childbirth or the puerperium

Child codes

  • 3A00.01 – Chronic posthaemorrhagic anaemia
  • 3A00.0Z – Acquired iron deficiency anaemia due to blood loss, unspecified

Sibling codes

  • 3A00.1 – Acquired iron deficiency anaemia due to low intake
  • 3A00.2 – Acquired iron deficiency anaemia due to decreased absorption
  • 3A00.3 – Acquired iron deficiency anaemia due to increased requirement
  • 3A00.Y – Other specified iron deficiency anaemia
  • 3A00.Z – Iron deficiency anaemia, unspecified

Foundation entity

Acquired iron deficiency anaemia due to blood loss – http://id.who.int/icd/entity/942744561

Part of: 3A00: Iron deficiency anaemia › 03: Diseases of the blood or blood-forming organs