3A01.Z

ICD-11 MMS 2026-01

Megaloblastic anaemia due to vitamin B12 deficiency, unspecified

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

Sibling codes

  • 3A01.0 – Hereditary vitamin B12 deficiency anaemia
  • 3A01.1 – Neonatal vitamin B12 deficiency anaemia
  • 3A01.2 – Vitamin B12 deficiency anaemia due to low intake
  • 3A01.3 – Vitamin B12 deficiency anaemia due to intrinsic factor deficiency
  • 3A01.4 – Vitamin B12 deficiency anaemia due to intestinal disease
  • 3A01.5 – Drug-induced vitamin B12 deficiency anaemia
  • 3A01.Y – Other specified megaloblastic anaemia due to vitamin B12 deficiency

Foundation entity

Megaloblastic anaemia due to vitamin B12 deficiency – http://id.who.int/icd/entity/623613402

Part of: 3A01: Megaloblastic anaemia due to vitamin B12 deficiency › 03: Diseases of the blood or blood-forming organs