ICD-10-CM > S00-T88 > T79-T79 > T79 > T79.A > T79.A1 T79.A1 Traumatic compartment syndrome of upper extremity Non-Billable/Non-Specific Applicable To Traumatic compartment syndrome of shoulder, arm, forearm, wrist, hand, and fingers Codes T79.A11Traumatic compartment syndrome of right upper extremityT79.A11A..., initial encounterT79.A11D..., subsequent encounterT79.A11S..., sequelaT79.A12Traumatic compartment syndrome of left upper extremityT79.A12A..., initial encounterT79.A12D..., subsequent encounterT79.A12S..., sequelaT79.A19Traumatic compartment syndrome of unspecified upper extremityT79.A19A..., initial encounterT79.A19D..., subsequent encounterT79.A19S..., sequela