Is M88 a billable ICD-10-CM code?

No. M88 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M88 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other osteopathies (M86-M90).

What cannot be coded together with M88?

M88 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

M88

M88 — Osteitis deformans [Paget's disease of bone]

Non-billable headerICD-10-CM

M88 is a non-billable header ICD-10-CM code for osteitis deformans [paget's disease of bone]. 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.

osteitis deformans in neoplastic disease (M90.6)

Other codes that can never be billed with M88

These codes carry an Excludes1 note pointing at M88. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M88 alone.

M43Other deforming dorsopathies
M90.6Osteitis deformans in neoplastic diseases

Risk adjustment

M88 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 M88

4 child codes. Green means billable.

Questions about M88

Is M88 a billable ICD-10-CM code?: No. M88 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M88 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other osteopathies (M86-M90).
What cannot be coded together with M88?: M88 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.