ICD-10-CM > S00-T88 > S80-S89 > S85 > S85.1 > S85.18 > S85.189 S85.189 Other specified injury of posterior tibial artery, unspecified leg Non-Billable/Non-Specific Codes S85.189A..., initial encounterS85.189D..., subsequent encounterS85.189S..., sequela