Is M32 a billable ICD-10-CM code?

No. M32 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M32 sit in the tabular list?

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

What cannot be coded together with M32?

M32 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

M32

M32 — Systemic lupus erythematosus (SLE)

Non-billable headerICD-10-CM

M32 is a non-billable header ICD-10-CM code for systemic lupus erythematosus (sle). It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

lupus erythematosus (discoid) (NOS) (L93.0)

Other codes that can never be billed with M32

These codes carry an Excludes1 note pointing at M32. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M32 alone.

L93Lupus erythematosus
N08Glomerular disorders in diseases classified elsewhere
N16Renal tubulo-interstitial disorders in diseases classified elsewhere
G63Polyneuropathy in diseases classified elsewhere
G73.7Myopathy in diseases classified elsewhere
I32Pericarditis in diseases classified elsewhere
I39Endocarditis and heart valve disorders in diseases classified elsewhere
I68.2Cerebral arteritis in other diseases classified elsewhere

Risk adjustment

M32 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead M32

4 child codes. Green means billable.

Questions about M32

Is M32 a billable ICD-10-CM code?: No. M32 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M32 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).
What cannot be coded together with M32?: M32 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.