3A03.42

ICD-11 MMS 2026-01

Acquired thiamine deficiency anaemia

Description

A disease caused by a lack of thiamine arising after birth. This disease is characterised low levels of thiamine in the body leading to low levels of red blood cells. This disease may present with fatigue, muscle weakness, loss of appetite, weight loss, diarrhoea, nausea, fast heartbeat or numbness in extremities. Confirmation is by identification of low levels of thiamine and low red blood cell count in a blood sample.

Index terms

  • Acquired thiamine deficiency anaemia
  • Acquired vitamin B1 deficiency anaemia

Exclusions from above levels

  • 04 – Diseases of the immune system
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth or the puerperium
Show allHide
  • 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

Sibling codes

  • 3A03.40 – Acquired pyridoxine deficiency anaemia
  • 3A03.41 – Acquired riboflavin deficiency anaemia
  • 3A03.4Y – Other specified acquired other vitamin B deficiency anaemia

Foundation entity

Acquired thiamine deficiency anaemia – http://id.who.int/icd/entity/1675514504

Part of: 3A03.4: Acquired other vitamin B deficiency anaemia › 3A03: Certain nutritional or metabolic anaemias › 03: Diseases of the blood or blood-forming organs