Is M33.9 a billable ICD-10-CM code?

No. M33.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M33.9 sit in the tabular list?

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

M33.9

M33.9 — Dermatopolymyositis, unspecified

Non-billable headerICD-10-CM

M33.9 is a non-billable header ICD-10-CM code for dermatopolymyositis, unspecified. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

M33.9 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 M33.9

5 child codes. Green means billable.

M33.90Dermatopolymyositis, unspecified, organ involvement unspecified
M33.91Dermatopolymyositis, unspecified with respiratory involvement
M33.92Dermatopolymyositis, unspecified with myopathy
M33.93Dermatopolymyositis, unspecified without myopathy
M33.99Dermatopolymyositis, unspecified with other organ involvement

Related codes at this level

Codes that share M33. If M33.9 is not quite right, the correct code is usually one of these.

M33.0Juvenile dermatomyositis
M33.1Other dermatomyositis
M33.2Polymyositis

Questions about M33.9

Is M33.9 a billable ICD-10-CM code?: No. M33.9 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M33.9 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Systemic connective tissue disorders (M30-M36).