Is M79.A1 a billable ICD-10-CM code?

No. M79.A1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M79.A1 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other soft tissue disorders (M70-M79).

M79.A1

M79.A1 — Nontraumatic compartment syndrome of upper extremity

Non-billable headerICD-10-CM

M79.A1 is a non-billable header ICD-10-CM code for nontraumatic compartment syndrome of upper extremity. 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.

Nontraumatic compartment syndrome of shoulder, arm, forearm, wrist, hand, and fingers

Risk adjustment

M79.A1 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 M79.A1

3 child codes. Green means billable.

Related codes at this level

Codes that share M79.A. If M79.A1 is not quite right, the correct code is usually one of these.

Questions about M79.A1

Is M79.A1 a billable ICD-10-CM code?: No. M79.A1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M79.A1 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Other soft tissue disorders (M70-M79).