Is M31.0 a billable ICD-10-CM code?

Yes. M31.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does M31.0 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).

M31.0

M31.0 — Hypersensitivity angiitis

Billable / specific codeICD-10-CM

M31.0 is a billable, specific ICD-10-CM code for hypersensitivity angiitis. It is valid for submission on a claim.

Inclusion terms

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

Goodpasture's syndrome

Other codes that can never be billed with M31.0

These codes carry an Excludes1 note pointing at M31.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M31.0 alone.

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

Risk adjustment

M31.0 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 93 Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders0.617 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

M31.0 is named in 15 Medicare coverage policies — 9 listing it as supporting medical necessity, and 6 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
A59434Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered

How M31.0 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to M31.0.

Goodpasture's syndrome
Angiitis›hypersensitivity
Arteritis›allergic
Disease, diseased›antiglomerular basement membrane antibody(anti- GBM)
Vasculitis›leukocytoclastic
Disorder›glomerular›Goodpasture's syndrome
Glomerulonephritis›in›Goodpasture's syndrome
Nephritis, nephritic›antiglomerular basement membrane antibody NEC›in Goodpasture's syndrome
Syndrome›pulmonary›renal(hemorrhagic) (Goodpasture's)

Related codes at this level

Codes that share M31. If M31.0 is not quite right, the correct code is usually one of these.

Questions about M31.0

Is M31.0 a billable ICD-10-CM code?: Yes. M31.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does M31.0 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).