Category M31
Other necrotizing vasculopathies
Clinical Classification Guidelines
Specific Diagnosis Codes
Hypersensitivity angiitis
M31.0
Thrombotic microangiopathy
M31.1
Thrombotic microangiopathy, unspecified
M31.10
Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA]
M31.11
Other thrombotic microangiopathy
M31.19
Lethal midline granuloma
M31.2
Wegener's granulomatosis
M31.3
Wegener's granulomatosis without renal involvement
M31.30
Wegener's granulomatosis with renal involvement
M31.31
Aortic arch syndrome [Takayasu]
M31.4
Giant cell arteritis with polymyalgia rheumatica
M31.5
Other giant cell arteritis
M31.6
Microscopic polyangiitis
M31.7
Other specified necrotizing vasculopathies
M31.8
Necrotizing vasculopathy, unspecified
M31.9
