MCMedicalCodingSoftware
M31.3

M31.3: Wegener's granulomatosis

Non-billable headerICD-10-CM

M31.3 is a non-billable header ICD-10-CM code for wegener's granulomatosis. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Granulomatosis with polyangiitis
  • Necrotizing respiratory granulomatosis

Other codes that can never be billed with M31.3

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • J99Respiratory disorders in diseases classified elsewhere
  • L95Vasculitis limited to skin, not elsewhere classified
  • N08Glomerular disorders in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M31.3

2 child codes. Green means billable.

Other codes under M31

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.