ICD-10-CM > S00-T88 > T79-T79 > T79 > T79.A > T79.A2 T79.A2 Traumatic compartment syndrome of lower extremity Non-Billable/Non-Specific Applicable To Traumatic compartment syndrome of hip, buttock, thigh, leg, foot, and toes Codes T79.A21Traumatic compartment syndrome of right lower extremityT79.A21A..., initial encounterT79.A21D..., subsequent encounterT79.A21S..., sequelaT79.A22Traumatic compartment syndrome of left lower extremityT79.A22A..., initial encounterT79.A22D..., subsequent encounterT79.A22S..., sequelaT79.A29Traumatic compartment syndrome of unspecified lower extremityT79.A29A..., initial encounterT79.A29D..., subsequent encounterT79.A29S..., sequela