Sprain of calcaneofibular ligament of left ankle, subs

This code signifies a sprain affecting the calcaneofibular ligament in the left ankle, which is a key stabilizing ligament on the outside of the ankle. A sprain indicates stretching or tearing of this ligament, often resulting from an inversion injury.

This code is appropriate for follow-up visits, cast changes, physical therapy sessions, or repeat imaging studies for a patient previously diagnosed and treated for a calcaneofibular ligament sprain of the left ankle. It indicates that the patient is in the healing or recovery phase of the injury.

• Ensure documentation specifies the left ankle and the calcaneofibular ligament.
• The "D" seventh character indicates a subsequent encounter, meaning the patient is receiving routine care during the healing phase.
• Distinguish from initial encounters ("A") or sequela ("S") for the same injury.