ICD-10 I77.82
Billable / Specific HCC v28: 40Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
About ICD-10-CM I77.82
ICD-10-CM code I77.82 represents Antineutrophilic cytoplasmic antibody [ANCA] vasculitis. This is a billable/specific code in the Circulatory System chapter (block I77). The 2026 edition of ICD-10-CM I77.82 became effective on October 1, 2025.
Coding Tips for I77.82
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
I77.82 is a CMS-HCC v28 risk-adjustment code (category 40). To count for the patient Risk Adjustment Factor (RAF), document the diagnosis with MEAT language each calendar year: Monitored, Evaluated, Assessed, Treated. A diagnosis on the problem list alone does not satisfy CMS RADV audit standards. Include the diagnosis in the assessment with current status and current treatment plan.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under I77.82. Per CMS ICD-10-CM Tabular 2026.
- ANCA associated vasculitis
- ANCA positive vasculitis
Type 2 Excludes
Not included here, the excluded code is not part of I77.82, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- eosinophilic granulomatosis with polyangiitis (M30.1)
- granulomatosis with polyangiitis (M31.3-)
- microscopic polyangiitis (M31.7)
Medicare Advantage HCC Impact
Capture this diagnosis annually for accurate risk adjustment. Missed HCC captures are the #1 revenue leak in Medicare Advantage risk programs.
Medicare LCD Coverage for I77.82
Local Coverage Determinations (LCDs) from CMS MACs that list I77.82 as a covered diagnosis.
Showing top 10 of 179 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing I77.82.
2 Cigna
5 Medicare
1 Aetna
CPT Codes Commonly Billed with I77.82
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To I77.82
Other codes in section I70-I79 (Diseases of arteries, arterioles and capillaries).
ICD-10 I77.82, Billing FAQ
Is ICD-10 code I77.82 billable? +
Yes, I77.82 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to I77.82? +
ICD-10 I77.82 includes: ANCA associated vasculitis; ANCA positive vasculitis.
What codes are Type 2 Excludes for I77.82? +
Type 2 Excludes (may be coded together when both conditions exist): eosinophilic granulomatosis with polyangiitis (M30.1); granulomatosis with polyangiitis (M31.3-); microscopic polyangiitis (M31.7)
Does I77.82 affect Medicare Advantage HCC risk adjustment? +
Yes. I77.82 maps to CMS-HCC v28 category 40. Capture this diagnosis annually for accurate Medicare Advantage risk score.
Get the full PayerReady toolkit
Free access to CPT/ICD-10 lookup, denial appeals, fee comparator, and claim auditing with credentialing enrollment.
Start free →Run this code through our claim audit tool
Check NCCI bundling, MUE limits, and modifier logic before submission.
Try the auditor →Did this page help?
Quick signal so we know what to improve.
If you want a code reference page that doesn't exist yet, email coding@payerready.com.
Tell us what's missing or wrong: coding@payerready.com. We respond within 5 business days.
Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
Powered by 11K CPT · 98K ICD-10 · 860K MPFS rates · 4.5M NCCI edits · 9.5M NPIs. Our data methodology · About our coding team