M31.8
M31.8: Other specified necrotizing vasculopathies
Billable / specific codeICD-10-CM
M31.8 is a billable, specific ICD-10-CM code for other specified necrotizing vasculopathies. It is valid for submission on a claim.
Check M31.8 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Hypocomplementemic vasculitis
- Septic vasculitis
Risk adjustment
M31.8 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 94 Systemic Lupus Erythematosus and Other Specified Systemic Connective Tissue Disorders0.268 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
M31.8 is named in 15 Medicare coverage policies: 8 listing it as supporting medical necessity, and 7 listing it as NOT covered. Which one applies depends on your Medicare contractor.
- A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58883Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
- A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
Alphabetic index entries that lead here
- Vasculitis›hypocomplementemic
- Vasculitis›systemic
- Vasculopathy, necrotizing›specified NEC
- Angiitis›necrotizing›specified NEC
- Arteritis›necrosing or necrotizing›specified NEC
Code history
Unchanged in every release from FY2024 to FY2027.
Other codes under M31
- M31.0Hypersensitivity angiitis
- M31.1Thrombotic microangiopathy
- M31.2Lethal midline granuloma
- M31.3Wegener's granulomatosis
- M31.4Aortic arch syndrome [Takayasu]
- M31.5Giant cell arteritis with polymyalgia rheumatica
- M31.6Other giant cell arteritis
- M31.7Microscopic polyangiitis
- M31.9Necrotizing vasculopathy, unspecified