Sprain of calcaneofibular ligament of unsp ankle, subs

This code signifies a sprain of the calcaneofibular ligament, a key stabilizing ligament on the outside of the ankle, specifically during the healing or recovery phase. The injury affects the connection between the heel bone (calcaneus) and the fibula, without specifying which ankle.

Apply this code when a patient is receiving follow-up care, such as physical therapy, cast changes, or repeat imaging, for a previously diagnosed calcaneofibular ligament sprain. This indicates that the initial treatment has been rendered and the patient is now in the subsequent phase of care.

• Ensure documentation clearly indicates a "subsequent encounter" for the injury, not the initial diagnosis.
• Verify that the sprain specifically involves the calcaneofibular ligament and not other ankle ligaments.
• If the laterality (left or right ankle) is documented, a more specific code should be used.