Strain musc/tend post grp at low leg level, right leg, subs

This code signifies a muscle or tendon strain affecting the posterior compartment of the right lower leg, such as the calf muscles (gastrocnemius, soleus) or Achilles tendon. It indicates that the patient is in the healing phase of this injury, receiving follow-up care after the initial treatment.

Use this code for a patient presenting for a follow-up visit, physical therapy, or medication refill related to a previously diagnosed strain of the right calf or Achilles tendon. This applies when the injury is not new and the patient is no longer in the acute phase of care.

• Ensure documentation specifies "right leg" and "posterior muscle group" at the lower leg level.
• Confirm the encounter is for subsequent care, not the initial injury or a sequela.
• Distinguish from sprains (ligament injuries) and complete ruptures.