04

The ICD-11 code for diseases of the immune system is 04. The full clinical description is "Diseases of the immune system".

ICD-11 code 04 represents "Diseases of the immune system". It is classified under the ICD-11 classification system.

There is no direct ICD-10 mapping available for 04 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-10. Use the ICD-11 to ICD-10 converter to search for related codes.

ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.

04 has 6 child codes, including: BlockL1-4A0 (Primary immunodeficiencies), BlockL1-4A4 (Nonorgan specific systemic autoimmune disorders), BlockL1-4A6 (Autoinflammatory disorders), BlockL1-4A8 (Allergic or hypersensitivity conditions), and 2 more.