M31.0
Hypersensitivity angiitis
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 11 never code together
M30-M36block
Excludes1
- autoimmune disease, single organ or single cell-type -code to relevant condition category
M00-M99chapter
Excludes2
- arthropathic psoriasis (L40.5-)L40.5-
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- compartment syndrome (traumatic) (T79.A-)T79.A-
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 6
M31.0code
Inclusion terms
- Goodpasture's syndrome
M30-M36block
Includes
- autoimmune disease NOS
- collagen (vascular) disease NOS
- systemic autoimmune disease
- systemic collagen (vascular) disease
M00-M99chapter
Notes
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Index entries leading here 9
- Arteritis I77.6
- allergic M31.0
- Angiitis I77.6
- hypersensitivity M31.0
- Disease, diseased — see also Syndrome
- antiglomerular basement membrane (anti- GBM) antibody M31.0
- Nephritis, nephritic (albuminuric) (azotemic) (congenital) (disseminated) (epithelial) (familial) (focal) (granulomatous) (hemorrhagic) (infantile) (nonsuppurative, excretory) (uremic) N05.9
- antiglomerular basement membrane (anti-GBM) antibody NEC
- in Goodpasture's syndrome M31.0
- antiglomerular basement membrane (anti-GBM) antibody NEC
- Disorder (of) — see also Disease
- Glomerulonephritis N05.9
- in (due to)
- Goodpasture's syndrome M31.0
- in (due to)
- Goodpasture's syndrome M31.0
- Vasculitis I77.6
- leukocytoclastic M31.0
- Syndrome — see also Disease
- pulmonary
- renal (hemorrhagic) (Goodpasture's) M31.0
- pulmonary
Alongside this code 9 same parent — M31
M31.1 Thrombotic microangiopathy category M31.2 Lethal midline granuloma M31.3 Wegener's granulomatosis category M31.4 Aortic arch syndrome [Takayasu] M31.5 Giant cell arteritis with polymyalgia rheumatica M31.6 Other giant cell arteritis M31.7 Microscopic polyangiitis M31.8 Other specified necrotizing vasculopathies M31.9 Necrotizing vasculopathy, unspecified
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.