Is M08.9 a billable ICD-10-CM code?

No. M08.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M08.9 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Inflammatory polyarthropathies (M05-M14).

What cannot be coded together with M08.9?

M08.9 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

M08.9

M08.9 — Juvenile arthritis, unspecified

Non-billable headerICD-10-CM

M08.9 is a non-billable header ICD-10-CM code for juvenile arthritis, unspecified. 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.

juvenile rheumatoid arthritis, unspecified (M08.0-)

Risk adjustment

M08.9 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 M08.9

11 child codes. Green means billable.

Related codes at this level

Codes that share M08. If M08.9 is not quite right, the correct code is usually one of these.

Questions about M08.9

Is M08.9 a billable ICD-10-CM code?: No. M08.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M08.9 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Inflammatory polyarthropathies (M05-M14).
What cannot be coded together with M08.9?: M08.9 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.