4A43

The ICD-11 code for overlap or undifferentiated nonorgan specific systemic autoimmune disease is 4A43. The full clinical description is "Overlap or undifferentiated nonorgan specific systemic autoimmune disease".

ICD-11 code 4A43 represents “Overlap or undifferentiated nonorgan specific systemic autoimmune disease”. It is classified under Chapter 4: Diseases of the Immune System.

4A43 is in Chapter 4: Diseases of the Immune System (codes 4A00-4B4Z).

There is no direct ICD-10 mapping available for 4A43 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.

4A43 has 7 child codes, including: 4A43.0 (IgG4 related disease), 4A43.1 (Mikulicz disease), 4A43.2 (Sjögren syndrome), 4A43.3 (Mixed connective tissue disease), and 3 more.