Is M00 a billable ICD-10-CM code?

No. M00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M00 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Infectious arthropathies (M00-M02).

M00

M00 — Pyogenic arthritis

Non-billable headerICD-10-CM

M00 is a non-billable header ICD-10-CM code for pyogenic arthritis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

infection and inflammatory reaction due to internal joint prosthesis (T84.5-)

Risk adjustment

M00 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 M00

5 child codes. Green means billable.

Questions about M00

Is M00 a billable ICD-10-CM code?: No. M00 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M00 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Infectious arthropathies (M00-M02).