M31 ICD-10-CM Code: Other necrotizing vasculopathies
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
M31Other necrotizing vasculopathies
ICD-10-CM diagnosis code · United States clinical modification
Where M31 sits
- 1
Chapter 13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2
Section
Systemic connective tissue disorders (M30-M36)
- 3
Category M31
Other necrotizing vasculopathies
- 4
Code M31
Other necrotizing vasculopathies
Codes under M31
M31 is a non-billable category. Choose the child code that best matches the documented diagnosis.
M31.0Hypersensitivity angiitisM31.1Thrombotic microangiopathyM31.2Lethal midline granulomaM31.3Wegener's granulomatosisM31.4Aortic arch syndrome [Takayasu]M31.5Giant cell arteritis with polymyalgia rheumaticaM31.6Other giant cell arteritisM31.7Microscopic polyangiitisM31.8Other specified necrotizing vasculopathiesM31.9Necrotizing vasculopathy, unspecifiedNotes for this code
Inclusion terms
No inclusion terms are listed for M31.
Code first
No “code first” instruction is listed for M31.
Use additional code
No “use additional code” instruction is listed for M31.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for M31.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for M31.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code M31 mean?
M31 is the FY 2027 U.S. ICD-10-CM code for “Other necrotizing vasculopathies.”
Is M31 a billable or specific ICD-10-CM code?
No. M31 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is M31 located in ICD-10-CM?
M31 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Systemic connective tissue disorders (M30-M36) (M30–M36), under category M31, Other necrotizing vasculopathies.
What coding notes are listed for M31?
No inclusion terms are listed for M31 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.