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ICD-10-CM 2027 diagnosis code

I77.82Antineutrophilic cytoplasmic antibody [ANCA] vasculitis

✓ Billable / specific

I77.82 is a valid, billable ICD-10-CM code for antineutrophilic cytoplasmic antibody [anca] vasculitis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for ANCA vasculitis.

Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About I77.82

I77.82 is the ICD-10-CM diagnosis code for Antineutrophilic cytoplasmic antibody [ANCA] vasculitis. It belongs to category I77 (other disorders of arteries and arterioles), block I70-I79 (diseases of arteries, arterioles and capillaries) and chapter 9 (diseases of the circulatory system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within I77.8 (other specified disorders of arteries and arterioles), I77.82 is specifically for Antineutrophilic cytoplasmic antibody [ANCA] vasculitis. Related codes cover aortic ectasia (I77.81) and other specified disorders of arteries and arterioles (I77.89).

The conditions in its Excludes2 note aren't part of I77.82, but may be coded alongside it if the patient has both: eosinophilic granulomatosis with polyangiitis (M30.1), granulomatosis with polyangiitis (M31.3-) and microscopic polyangiitis (M31.7).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 299 (Peripheral Vascular Disorders with MCC, relative weight 1.5842), DRG 300 (Peripheral Vascular Disorders with CC, relative weight 1.0464) and DRG 301 (Peripheral Vascular Disorders without CC/MCC, relative weight 0.7133), in MDC 05 (Diseases and Disorders of the Circulatory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2023, effective October 1, 2022.

Coding notes

Applicable toConditions and synonyms classified to this code
  • ANCA associated vasculitis
  • ANCA positive vasculitis
Excludes2Not included here — may be reported together if both conditions exist
  • eosinophilic granulomatosis with polyangiitis (M30.1)
  • granulomatosis with polyangiitis (M31.3-)
  • microscopic polyangiitis (M31.7)

Notes that apply from higher levels

Instructions written at a parent level also apply to I77.82.

› From I77 Other disorders of arteries and arterioles
Excludes2
  • collagen (vascular) diseases (M30-M36)
  • hypersensitivity angiitis (M31.0)
  • pulmonary artery (I28.-)

Broader instructions also apply from Chapter 9: Diseases of the circulatory system.

Alphabetic index entries

3 entries

Terms in the official ICD-10-CM index that lead to I77.82.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2023 (effective 10/1/2022): Added
  • No changes since FY2023.

Common questions about I77.82

Is I77.82 billable?

Yes. I77.82 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I77.82 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I77.82 as a principal diagnosis.

Is I77.82 a CC or MCC?

No. I77.82 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does I77.82 group to?

I77.82 is used in the MS-DRG v44.0 logic for MS-DRG 299 (Peripheral Vascular Disorders with MCC), MS-DRG 300 (Peripheral Vascular Disorders with CC) and MS-DRG 301 (Peripheral Vascular Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.