Is M48.1 a billable ICD-10-CM code?

No. M48.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M48.1 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Spondylopathies (M45-M49).

M48.1

M48.1 — Ankylosing hyperostosis [Forestier]

Non-billable headerICD-10-CM

M48.1 is a non-billable header ICD-10-CM code for ankylosing hyperostosis [forestier]. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

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

Diffuse idiopathic skeletal hyperostosis [DISH]

Other codes that can never be billed with M48.1

These codes carry an Excludes1 note pointing at M48.1. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M48.1 alone.

M85.8Other specified disorders of bone density and structure

Risk adjustment

M48.1 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 M48.1

10 child codes. Green means billable.

Related codes at this level

Codes that share M48. If M48.1 is not quite right, the correct code is usually one of these.

Questions about M48.1

Is M48.1 a billable ICD-10-CM code?: No. M48.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M48.1 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Spondylopathies (M45-M49).