ICD-10-CM 2027
ICD-10 code for vasculitis
From the official ICD-10-CM alphabetic index entry “Vasculitis”. Page updated September 29, 2026.
About coding vasculitis
The ICD-10-CM code for vasculitis is I77.6 (Arteritis, unspecified). The official index lists 15 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I77.6.
Within I77, choose I77.6 (Arteritis, unspecified) only when documentation doesn't support a more specific option: arteriovenous fistula, acquired (I77.0), stricture of artery (I77.1), rupture of artery (I77.2), arterial fibromuscular dysplasia (I77.3), celiac artery compression syndrome (I77.4), necrosis of artery (I77.5), other arterial dissection (I77.7), other specified disorders of arteries and arterioles (I77.8) and 1 more.
Don't report I77.6 together with the conditions in its Excludes1 note: aortic arch (M31.4), cerebral NEC (I67.7), coronary (I25.89), deformans (I70.-) and 3 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific vasculitis codes (official index)
- allergic D69.0 — Allergic purpura
- ANCA (antineutrophilic cytoplasmic antibody) associated I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
- ANCA (antineutrophilic cytoplasmic antibody) positive I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
- antineutrophilic cytoplasmic antibody [ANCA] I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
- cryoglobulinemic D89.1 — Cryoglobulinemia
- disseminated I77.6 — Arteritis, unspecified
- hypocomplementemic M31.8 — Other specified necrotizing vasculopathies
- kidney I77.89 — Other specified disorders of arteries and arterioles
- leukocytoclastic M31.0 — Hypersensitivity angiitis
- livedoid L95.0 — Livedoid vasculitis
- nodular L95.8 — Other vasculitis limited to the skin
- retina H35.06 — Retinal vasculitis
- rheumatic
- rheumatoid
- skin (limited to) L95.9 — Vasculitis limited to the skin, unspecified
- specified NEC L95.8 — Other vasculitis limited to the skin
- systemic M31.8 — Other specified necrotizing vasculopathies
Don't confuse with (Excludes1 for I77.6)
Common questions about vasculitis ICD-10 codes
What is the ICD-10 code for vasculitis?
- I77.6 — Arteritis, unspecified. More specific codes apply when the documentation supports them: D69.0, I77.82, I77.82, I77.82 and others below.
What is the ICD-10 code for allergic vasculitis?
- D69.0 — Allergic purpura.
What is the ICD-10 code for anca associated vasculitis?
- I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis.
What is the ICD-10 code for anca positive vasculitis?
- I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis.
What is the ICD-10 code for antineutrophilic cytoplasmic antibody [anca] vasculitis?
- I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis.
What is the ICD-10 code for cryoglobulinemic vasculitis?
- D89.1 — Cryoglobulinemia.
What is the ICD-10 code for disseminated vasculitis?
- I77.6 — Arteritis, unspecified.
Is I77.6 billable?
- Yes. I77.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can I77.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict I77.6 as a principal diagnosis.
Is I77.6 a CC or MCC?
- No. I77.6 is neither a CC nor an MCC under MS-DRG v44.0.