T79.A2

T79.A2: Traumatic compartment syndrome of lower extremity

Non-billable headerICD-10-CM

T79.A2 is a non-billable header ICD-10-CM code for traumatic compartment syndrome of lower extremity. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from category T79

A: initial encounter
D: subsequent encounter
S: sequela

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Traumatic compartment syndrome of hip, buttock, thigh, leg, foot, and toes

Excludes1 inherited from the categories above T79.A2

A category’s note binds every code beneath it.

Written on T79.A: Traumatic compartment syndrome

fibromyalgia (M79.7)
nontraumatic compartment syndrome (M79.A-)

Excludes2 inherited from the categories above T79.A2

Not part of this code, but both may be coded when both are present.

Written on T79.A: Traumatic compartment syndrome

traumatic ischemic infarction of muscle (T79.6)

Written on T79: Certain early complications of trauma, not elsewhere classified

acute respiratory distress syndrome (J80)
complications occurring during or following medical procedures (T80-T88)
complications of surgical and medical care NEC (T80-T88)
newborn respiratory distress syndrome (P22.0)

Risk adjustment

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

Alphabetic index entries that lead here

Compartment syndrome›lower extremity(hip, buttock, thigh, leg, foot, toes)
Syndrome›compartment›lower extremity(hip, buttock, thigh, leg, foot, toes)

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead T79.A2

3 child codes. Green means billable.