ICD-10-CM · Chapter 13 · M00-M99
M31 Other necrotizing vasculopathies
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| M31..0 | Hypersensitivity angiitis | Yes |
| M31..1 | Thrombotic microangiopathy | No |
| M31..10 | Thrombotic microangiopathy, unspecified | Yes |
| M31..11 | Hematopoietic stem cell transplantation-associated thrombotic microangiopathy [HSCT-TMA] | Yes |
| M31..19 | Other thrombotic microangiopathy | Yes |
| M31..2 | Lethal midline granuloma | Yes |
| M31..3 | Wegener's granulomatosis | No |
| M31..30 | Wegener's granulomatosis without renal involvement | Yes |
| M31..31 | Wegener's granulomatosis with renal involvement | Yes |
| M31..4 | Aortic arch syndrome [Takayasu] | Yes |
| M31..5 | Giant cell arteritis with polymyalgia rheumatica | Yes |
| M31..6 | Other giant cell arteritis | Yes |
| M31..7 | Microscopic polyangiitis | Yes |
| M31..8 | Other specified necrotizing vasculopathies | Yes |
| M31..9 | Necrotizing vasculopathy, unspecified | Yes |
Last reviewed: September 2026