ICD-11 classes
15 Diseases of the musculoskeletal system or connective...
Nonorgan specific systemic autoimmune disorders
4A44 — Vasculitis
4A44.2 — Giant cell arteritis

ICD-11 4A44.2 — Giant cell arteritis

Arteritis, often granulomatous, usually affecting the aorta and/or its major branches, with a predilection for the branches of the carotid artery. Often involves the temporal artery. Onset usually in patients older than 50 and often associated with polymyalgia rheumatica.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Vasculitis #3669
• Vasculitis or capillaritis involving the skin #16607