M79.A

M79.A: Nontraumatic compartment syndrome

Non-billable headerICD-10-CM

M79.A is a non-billable header ICD-10-CM code for nontraumatic compartment syndrome. 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.

compartment syndrome NOS (T79.A-)
fibromyalgia (M79.7)
nontraumatic ischemic infarction of muscle (M62.2-)
traumatic compartment syndrome (T79.A-)

Code first

The underlying condition must be sequenced before this code.

, if applicable, associated postprocedural complication

Excludes1 inherited from the categories above M79.A

A category’s note binds every code beneath it.

Written on M79: Other and unspecified soft tissue disorders, not elsewhere classified

psychogenic rheumatism (F45.8)
soft tissue pain, psychogenic (F45.41)

Other codes that can never be billed with M79.A

Their own Excludes1 notes name this code, so the conflict is not listed above.

M62.2Nontraumatic ischemic infarction of muscle
T79.ATraumatic compartment syndrome

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead M79.A

4 child codes. Green means billable.