ICD-10 Code I77.82 – Antineutrophilic cytoplasmic antibody [ANCA] vasculitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I77.82 – Antineutrophilic cytoplasmic antibody [ANCA] vasculitis
What it is
I77.82 identifies ANCA-associated vasculitis, a group of inflammatory blood vessel disorders linked to antineutrophil cytoplasmic antibodies. It is used when the record documents this specific vasculitis diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include systemic inflammation and organ involvement such as sinus, lung, kidney, skin, or nerve disease.
When to use this code
Use I77.82 when the clinician documents ANCA vasculitis, ANCA-associated vasculitis, or a clearly equivalent diagnosis. Code it when the condition is confirmed, not merely suspected or being ruled out. If the note names a specific subtype, make sure the documentation supports that diagnosis.
Do not use for
Do not use this code for positive ANCA testing alone without a documented vasculitis diagnosis. Do not assign it for other vasculitides or nonspecific inflammatory disorders; check documentation.
Coding tip
Match the exact provider wording and confirm whether the record supports ANCA-associated vasculitis rather than a broader vasculitis label.