Strain musc/tend ant grp at low leg level, unsp leg, subs

This code signifies a non-traumatic injury to the muscles and/or tendons located on the front of the lower leg, such as the tibialis anterior, without specifying which leg was affected. It indicates a muscle or tendon fiber tear or overstretching that occurred previously and is now being treated during a follow-up visit.

Use this code for a patient presenting for ongoing care, such as physical therapy, follow-up appointments, or medication adjustments, for a previously diagnosed strain of the anterior lower leg muscles or tendons. This applies when the initial injury has already been addressed and the patient is not in the acute phase of treatment.

• Ensure documentation clearly states "subsequent encounter" or indicates ongoing treatment for a previously diagnosed strain.
• Verify the injury is to the anterior muscle group of the lower leg; differentiate from posterior or lateral groups.
• If the specific leg (right or left) is documented, a more specific code should be used.