M31 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Other necrotizing vasculopathies.
Codes
M31.0
Hypersensitivity angiitis
M31.1
Thrombotic microangiopathy
M31.2
Lethal midline granuloma
M31.3
Wegener's granulomatosis
M31.4
Aortic arch syndrome [Takayasu]
M31.5
Giant cell arteritis with polymyalgia rheumatica
M31.6
Other giant cell arteritis
M31.7
Microscopic polyangiitis
M31.8
Other specified necrotizing vasculopathies
M31.9
Necrotizing vasculopathy, unspecified
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code