M31.0 – Hypersensitivity angiitis
ICD-10-CM 2027 diagnosis code · Systemic connective tissue disorders
ICD-10-CM code
M31.0
- Code
M31.0(claims format:M310)- Description
- Hypersensitivity angiitis
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M30-M36 Systemic connective tissue disorders
- Parent codes
- M31
Notes for M31.0
Applicable to:
- Goodpasture's syndrome
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Block M30-M36
Includes:
- autoimmune disease NOS
- collagen (vascular) disease NOS
- systemic autoimmune disease
- systemic collagen (vascular) disease
Excludes1 (not coded here):
- autoimmune disease, single organ or single cell-type -code to relevant condition category
Index terms for M31.0
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Arteritis, allergic
- Goodpasture's syndrome
- Angiitis, hypersensitivity
- Syndrome, pulmonary, renal
- Vasculitis, leukocytoclastic
- Disorder, glomerular, Goodpasture's syndrome
- Glomerulonephritis, in, Goodpasture's syndrome
- Disease, diseased, antiglomerular basement membrane
- Nephritis, nephritic, antiglomerular basement membrane, in Goodpasture's syndrome
Related codes in M31
- M31.1 – Thrombotic microangiopathyHeader
- M31.2 – Lethal midline granulomaBillable
- M31.3 – Wegener's granulomatosisHeader
- M31.4 – Aortic arch syndrome [Takayasu]Billable
- M31.5 – Giant cell arteritis with polymyalgia rheumaticaBillable
- M31.6 – Other giant cell arteritisBillable
- M31.7 – Microscopic polyangiitisBillable
- M31.8 – Other specified necrotizing vasculopathiesBillable
- M31.9 – Necrotizing vasculopathy, unspecifiedBillable
Frequently asked questions
What is ICD-10 code M31.0?
M31.0 is the ICD-10-CM code for hypersensitivity angiitis, in the block M30-M36 (Systemic connective tissue disorders).
Is M31.0 a billable code?
Yes. M31.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does M31.0 belong to?
It belongs to category M31 – Other necrotizing vasculopathies.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.