ICD-10-CM 2027
ICD-10 code for ANCA vasculitis
Confirmed by the official ICD-10-CM index entry “vasculitis › anca (antineutrophilic cytoplasmic antibody) associated”. Page updated September 29, 2026.
About coding ANCA vasculitis
The ICD-10-CM code for ANCA vasculitis is I77.82 (Antineutrophilic cytoplasmic antibody [ANCA] vasculitis). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I77.82.
It is also searched as ANCA-associated vasculitis.
Within I77.8 (other specified disorders of arteries and arterioles), I77.82 is specifically for Antineutrophilic cytoplasmic antibody [ANCA] vasculitis. Related codes cover aortic ectasia (I77.81) and other specified disorders of arteries and arterioles (I77.89).
The conditions in its Excludes2 note aren't part of I77.82, but may be coded alongside it if the patient has both: eosinophilic granulomatosis with polyangiitis (M30.1), granulomatosis with polyangiitis (M31.3-) and microscopic polyangiitis (M31.7).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Related ANCA vasculitis codes
Common questions about ANCA vasculitis ICD-10 codes
What is the ICD-10 code for ANCA vasculitis?
- I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis. More specific codes apply when the documentation supports them: M30.1, M31.30, M31.31, M31.7.
What is the ICD-10 code for polyarteritis with lung involvement [churg-strauss]?
- M30.1 — Polyarteritis with lung involvement [Churg-Strauss].
What is the ICD-10 code for wegener's granulomatosis without renal involvement?
- M31.30 — Wegener's granulomatosis without renal involvement.
What is the ICD-10 code for wegener's granulomatosis with renal involvement?
- M31.31 — Wegener's granulomatosis with renal involvement.
What is the ICD-10 code for microscopic polyangiitis?
- M31.7 — Microscopic polyangiitis.
Is I77.82 billable?
- Yes. I77.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I77.82 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I77.82 as a principal diagnosis.
Is I77.82 a CC or MCC?
- No. I77.82 is neither a CC nor an MCC under MS-DRG v44.0.