Unsp injury of posterior tibial artery, unsp leg, subs

This code signifies an injury to the posterior tibial artery in an unspecified leg, where the specific nature of the injury (e.g., laceration, puncture) is not documented. It is used for follow-up care after the initial treatment of such an injury.

This code is appropriate for subsequent encounters when a patient is receiving ongoing care for an unspecified injury to the posterior tibial artery of an unspecified leg. This includes situations like wound checks, medication management, or physical therapy related to the initial injury, after the acute phase has passed.

• Always strive for greater specificity regarding the type of injury (e.g., laceration, puncture) and the affected leg (right or left) if documented.
• Reserve this code for follow-up encounters; an initial encounter would use the "A" seventh character.
• If the specific leg is known, use a more precise code from the S85.16- category (e.g., S85.161D for right leg).