3A51.7ICD-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 system05– Endocrine, nutritional or metabolic diseases18– Complications of pregnancy, childbirth or the puerperium
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19– Certain conditions originating in the perinatal period20– Congenital malformations, deformations or chromosomal abnormalities22– 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 trait3A51.1– Sickle cell disease without crisis3A51.2– Sickle cell disease with crisis3A51.3– Compound heterozygous sickling disorders without crisis3A51.4– Compound heterozygous sickling disorders with crisis3A51.5– Haemoglobin C disease3A51.6– Haemoglobin D disease3A51.8– Low affinity haemoglobin3A51.9– Haemoglobin O disease3A51.A– Haemoglobin E disease3A51.B– Haemoglobin C/beta thalassaemia compound heterozygosity3A51.Y– Other specified sickle cell disorders or other haemoglobinopathies3A51.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