I77.82 — Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
I77.82 is a billable, specific ICD-10-CM code for antineutrophilic cytoplasmic antibody [anca] vasculitis. It is valid for submission on a claim.
Excludes2 — not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- ANCA associated vasculitis
- ANCA positive vasculitis
Risk adjustment
I77.82 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 93 Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders0.617 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.
Medicare coverage
I77.82 is named in 21 Medicare coverage policies — 21 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56380Billing and Coding: Rituximab
- A56697Billing and Coding: Non-Invasive Vascular Studies
- A56758Billing and Coding: Non-Invasive Vascular Studies
- A56775Billing and Coding: Magnetic Resonance Angiography
How I77.82 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I77.82.
- Vasculitis›ANCA associated(antineutrophilic cytoplasmic antibody)
- Vasculitis›ANCA positive(antineutrophilic cytoplasmic antibody)
- Vasculitis›antineutrophilic cytoplasmic antibody [ANCA]
Related codes at this level
Codes that share I77.8. If I77.82 is not quite right, the correct code is usually one of these.
Questions about I77.82
- Is I77.82 a billable ICD-10-CM code?
- Yes. I77.82 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I77.82 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).