2026 ICD-10-CM Diagnosis Code I77.82Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
ICD-10-CM Codes›I00–I99›I70-I79›I77
- Billable — Valid for Submission
- Chronic Condition
I77.82 is a billable ICD-10-CM diagnosis code for antineutrophilic cytoplasmic antibody [ANCA] vasculitis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 299 through 301. Coders also document this condition as antineutrophil cytoplasmic antibody positive vasculitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified circulatory disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Antineutrophil cytoplasmic antibody positive vasculitis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- ANCA associated vasculitis
- ANCA positive vasculitis
Type 2 Excludes
- eosinophilic granulomatosis with polyangiitis M30.1
- granulomatosis with polyangiitis M31.3
- microscopic polyangiitis M31.7
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Vasculitis
- ANCA (antineutrophilic cytoplasmic antibody) associated
- Vasculitis
- ANCA (antineutrophilic cytoplasmic antibody) positive
- Vasculitis
- antineutrophilic cytoplasmic antibody [ANCA]
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Vasculitis
Vasculitis is an inflammation of the blood vessels. It happens when the body's immune system attacks the blood vessel by mistake. It can happen because of an infection, a medicine, or another disease. The cause is often unknown.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code History & ChangesHistory
Replacement I77.82 replaces the following previously assigned code(s):
- I77.89 - Other specified disorders of arteries and arterioles
Questions About I77.82Overview
Is I77.82 (Other specified disorders of arteries and arterioles) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report antineutrophilic cytoplasmic antibody [ANCA] vasculitis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does I77.82 group to?
When antineutrophilic cytoplasmic antibody [ANCA] vasculitis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 299, 300, 301, with relative weights from 0.7197 to 1.6327 depending on complications. Higher weights mean higher Medicare reimbursement.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
