M31.9
BillableNecrotizing vasculopathy, unspecified
Necrotizing vasculopathy, unspecified
Coding Notes
Includes
Conditions included under this code
- autoimmune disease NOS
- collagen (vascular) disease NOS
- systemic autoimmune disease
- systemic collagen (vascular) disease
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- autoimmune disease, single organ or single cell-type -code to relevant condition category
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
Related Codes(9)
M31.0Hypersensitivity angiitis
M31.1Thrombotic microangiopathy
M31.2Lethal midline granuloma
M31.3Wegener's granulomatosis
M31.4Aortic arch syndrome [Takayasu]
M31.5Giant cell arteritis with polymyalgia rheumatica
M31.6Other giant cell arteritis
M31.7Microscopic polyangiitis
M31.8Other specified necrotizing vasculopathies
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(71)
SNOMED CT
- Necrosis of artery7930004
- Necrotising vasculitis11791001
- Necrotizing vasculitis11791001
- Cryoglobulinaemic vasculitis190815001
- Cryoglobulinemic vasculitis190815001
- Secondary systemic vasculitis234019004
- Vasculitis caused by drug234020005
- Lupus erythematosus-associated vasculitis239944008
- Lupus vasculitis239944008
- Vasculitis due to lupus erythematosus239944008
- Necrotising angiitis399980009
- Necrotising arteritis399980009
- Necrotizing angiitis399980009
- Necrotizing arteritis399980009
- Necrotising cutaneous vasculitis402655006
- Necrotizing cutaneous vasculitis402655006
- Necrotising vasculitis secondary to connective tissue disease402657003
- Necrotizing vasculitis secondary to connective tissue disease402657003
- Drug-induced necrotising vasculitis402659000
- Drug-induced necrotizing vasculitis402659000
- Necrotising vasculitis due to mixed cryoglobulinaemia402662002
- Necrotizing vasculitis due to mixed cryoglobulinemia402662002
- Cutaneous complication of systemic sclerosis402713007
- Lupus erythematosus-associated necrotising vasculitis403511003
- Lupus erythematosus-associated necrotizing vasculitis403511003
- Necrotising vasculitis due to lupus erythematosus403511003
- Necrotizing vasculitis due to lupus erythematosus403511003
- Necrotising vasculitis due to scleroderma403518009
- Necrotizing vasculitis due to scleroderma403518009
- Scleroderma-associated necrotising vasculitis403518009
- Scleroderma-associated necrotizing vasculitis403518009
- Immune complex small vessel vasculitis724600007
- Small vessel vasculitis caused by immune complex724600007
UMLS
Clinical Terms
- Vasculitis caused by drug
- Immune complex small vessel vasculitis
- Necrotizing vasculitis
- Vasculitis due to lupus erythematosus
- Necrotising vasculitis
- Necrotising angiitis
- Necrotising vasculitis secondary to connective tissue disease
- Drug-induced necrotising vasculitis
- Lupus erythematosus-associated vasculitis
- Necrotising vasculitis due to lupus erythematosus
- Scleroderma-associated necrotising vasculitis
- Lupus erythematosus-associated necrotizing vasculitis
- Necrotising vasculitis due to mixed cryoglobulinaemia
- Lupus erythematosus-associated necrotising vasculitis
- Lupus vasculitis
- Necrotizing vasculitis due to scleroderma
- Necrotizing angiitis
- Small vessel vasculitis caused by immune complex
- Necrotising cutaneous vasculitis
- Necrotizing vasculitis due to lupus erythematosus
- Cutaneous complication of systemic sclerosis
- Necrotizing cutaneous vasculitis
- Cryoglobulinaemic vasculitis
- Drug-induced necrotizing vasculitis
- Necrotizing arteritis
- Secondary systemic vasculitis
- Necrotizing vasculitis secondary to connective tissue disease
- Cryoglobulinemic vasculitis
- Necrosis of artery
- Scleroderma-associated necrotizing vasculitis
- Necrotising vasculopathy
- Necrotising vasculitis due to scleroderma
- Necrotizing vasculitis due to mixed cryoglobulinemia
- Necrotising arteritis
Frequently Asked Questions
What is the ICD-10 code for necrotizing vasculopathy, unspecified?
The ICD-10-CM code for necrotizing vasculopathy, unspecified is M31.9. The full clinical description is "Necrotizing vasculopathy, unspecified". M31.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M31.9 mean?
ICD-10-CM code M31.9 represents “Necrotizing vasculopathy, unspecified”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.
Is M31.9 a billable code?
Yes, M31.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M31.9 in?
M31.9 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M31.9?
M31.9 has Excludes1 notes indicating codes that cannot be used together with it, including: autoimmune disease, single organ or single cell-type -code to relevant condition category.
What SNOMED CT codes does M31.9 map to?
M31.9 maps to 15 SNOMED CT concepts: 190815001, 402713007, 402659000, 724600007, 403511003, and 10 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M31.9?
M31.9 is linked to 1 UMLS Concept Unique Identifier: C0477597. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M31.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like necrotizing vasculopathy, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M31.9?
M31.9 maps to the ICD-11 code: 4A44.Z (Vasculitis, unspecified).
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.