4A44.A1 Granulomatosis with polyangiitis

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2026-01

Necrotizing granulomatous inflammation usually involving the upper and lower respiratory tract, and necrotizing vasculitis affecting predominantly small to medium-sized vessels (e.g., capillaries, venules, arterioles, arteries and veins). Necrotizing glomerulonephritis is common.

inclusions

• Wegener granulomatosis

synonyms

• Granulomatosis with polyangiitis
• Wegener granulomatosis
• Necrotising respiratory granulomatosis

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