3A51.7

ICD-11 MMS 2026-01

High affinity haemoglobin

Description

A disease caused by determinants arising after birth, in the antenatal period or by genetically inherited factors leading to high oxygen affinity haemoglobin. This disease is characterised by abnormalities in the globin chains that alter the affinity of the haemoglobin molecule for oxygen, affecting the normal loading of oxygen in the lungs and delivery of oxygen to the tissues.

Index terms

  • High affinity haemoglobin
  • Haemoglobins with abnormal oxygen affinity

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

  • 3A51.0 – Sickle cell trait
  • 3A51.1 – Sickle cell disease without crisis
  • 3A51.2 – Sickle cell disease with crisis
  • 3A51.3 – Compound heterozygous sickling disorders without crisis
  • 3A51.4 – Compound heterozygous sickling disorders with crisis
  • 3A51.5 – Haemoglobin C disease
  • 3A51.6 – Haemoglobin D disease
  • 3A51.8 – Low affinity haemoglobin
  • 3A51.9 – Haemoglobin O disease
  • 3A51.A – Haemoglobin E disease
  • 3A51.B – Haemoglobin C/beta thalassaemia compound heterozygosity
  • 3A51.Y – Other specified sickle cell disorders or other haemoglobinopathies
  • 3A51.Z – Sickle cell disorders or other haemoglobinopathies, unspecified

Foundation entity

High affinity haemoglobin – http://id.who.int/icd/entity/141481914

Part of: 3A51: Sickle cell disorders or other haemoglobinopathies › 03: Diseases of the blood or blood-forming organs