ICD-10-CM > S00-T88 > T79-T79 > T79 > T79.A > T79.A0 T79.A0 Compartment syndrome, unspecified Non-Billable/Non-Specific Applicable To Compartment syndrome NOS Codes T79.A0XA..., initial encounterT79.A0XD..., subsequent encounterT79.A0XS..., sequela