3B62.4

ICD-11 MMS 2026-01

Alpha-delta dense granule deficiency

Description

A condition caused by determinants arising after birth, in the antenatal period. This condition is characterised by defects in the alpha delta dense granules in platelets, leading to abnormalities in coagulation mechanisms. This condition may present with prolonged bleeding, epistaxis, menorrhagia, easy bruising, anaemia, fatigue or shortness of breath. Confirmation is by identification of low levels of alpha delta dense granules in a blood sample.

Index terms

  • Alpha-delta dense granule deficiency
  • deficient alpha granule syndrome
  • platelet alpha granule deficiency

Exclusions from above levels

  • 3B12 – Von Willebrand disease
  • JA43.3 – Postpartum coagulation defects
  • 04 – Diseases of the immune system
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  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth or the puerperium
  • 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

  • 3B62.0 – Inherited qualitative platelet defects
  • 3B62.1 – Bleeding diathesis due to thromboxane synthesis deficiency
  • 3B62.2 – Isolated thrombocytopenia
  • 3B62.3 – Dense granule disease
  • 3B62.Y – Other specified qualitative platelet defects
  • 3B62.Z – Qualitative platelet defects, unspecified

Foundation entity

Alpha-delta dense granule deficiency – http://id.who.int/icd/entity/1557840180

Part of: 3B62: Qualitative platelet defects › 03: Diseases of the blood or blood-forming organs