ICD-11 classes
04 Diseases of the immune system
Nonorgan specific systemic autoimmune disorders
4A44 — Vasculitis
4A44.9 — Immune complex small vessel vasculitis
4A44.91 — Hypocomplementaemic urticarial vasculitis
ICD-11 4A44.91 — Hypocomplementaemic urticarial vasculitis
Vasculitis accompanied by urticaria and hypocomplementemia affecting small vessels (i.e., capillaries, venules, or arterioles), and associated with anti-C1q antibodies. Glomerulonephritis, arthritis, obstructive pulmonary disease, and ocular inflammation are common.(Chapel Hill Consensus Conference, 2011)
The diagnosis includes nothing.
The diagnosis excludes nothing.
It has no clarifying diagnoses.
The diagnosis is coded elsewhere:
- Urticarial vasculitis #3843
- Urticarial vasculitis #15742
- Urticarial vasculitis #16610
- Immune complex small vessel vasculitis #18407