M31 is the ICD-10 code for Other necrotizing vasculopathies. It is a three-character category divided into 9 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block M30–M36 (Systemic connective tissue disorders) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.
- Code type
- Category (3 characters)
- Chapter
- XIII · M00–M99
- Classification
- WHO ICD-10, 2019 version
Subcodes of M31
- M31.0Hypersensitivity angiitis
- M31.1Thrombotic microangiopathy
- M31.3Wegener granulomatosis
- M31.4Aortic arch syndrome [Takayasu]
- M31.5Giant cell arteritis with polymyalgia rheumatica
- M31.6Other giant cell arteritis
- M31.7Microscopic polyangiitis
- M31.8Other specified necrotizing vasculopathies
- M31.9Necrotizing vasculopathy, unspecified
M31 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DM31Andre nekrotiserende vaskuliter
- DM312Letalt midtlinjegranulom
M31Muut kuolioita aiheuttavat verisuonisairaudet
- M31.2Letaali keskiviivan granulooma
M31Sonstige nekrotisierende Vaskulopathien
M31Autres vasculopathies nécrosantes
M31overige necrotiserende vaataandoeningen
Listed through more specific codes:
- M31.2Lethal midline granuloma
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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