CH04Level 1

Diseases of the immune system

**Exclusions:** - Complications of pregnancy, childbirth and the puerperium - Neoplasms - Developmental anomalies

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4A20Acquired immunodeficiencies

4B40Diseases of thymus

4B4YOther specified diseases of the immune system

4B4ZDiseases of the immune system, unspecified

BlockL1-4A0Primary immunodeficiencies

BlockL1-4A4Nonorgan specific systemic autoimmune disorders

BlockL1-4A6Autoinflammatory disorders

BlockL1-4A8Allergic or hypersensitivity conditions

BlockL1-4B0Immune system disorders involving white cell lineages

BlockL1-4B2Certain disorders involving the immune system

Cross-system equivalences0

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