Sprain of calcaneofibular ligament of unsp ankle, sequela

This diagnosis code indicates a long-term or residual effect resulting from a past injury to the calcaneofibular ligament in an ankle, where the specific ankle (left or right) is not documented. It signifies that the patient is experiencing ongoing symptoms or complications directly attributable to a previous sprain of this particular ligament.

Use this code when documentation clearly states a sequela (e.g., chronic instability, persistent pain, limited range of motion) due to a prior calcaneofibular ligament sprain. This code is appropriate for encounters addressing the late effects of the original injury, rather than the acute sprain itself.

• Always ensure the documentation explicitly links the current condition to a previous calcaneofibular ligament sprain.
• Verify that the laterality of the ankle is truly unspecified in the medical record before assigning this code.
• Remember that the "S" seventh character denotes a sequela, indicating a complication or condition arising as a direct result of a previous injury.