Sprain of other ligament of unspecified ankle, sequela

This code signifies a chronic or residual condition resulting from a previous sprain to a ligament in an unspecified ankle, excluding the deltoid, calcaneofibular, and tibiofibular ligaments. The "sequela" designation indicates that the current symptoms are a long-term consequence of the initial injury, rather than an acute sprain. This could involve persistent pain, instability, or limited range of motion.

This code is appropriate for patients presenting with ongoing symptoms directly attributable to an old ankle sprain, after the acute phase of healing has passed. Examples include chronic ankle instability following a lateral ankle sprain, or persistent pain and stiffness in the ankle joint due to scar tissue formation from a prior injury. It should be used when the current encounter addresses these long-term effects.

• Always ensure documentation clearly specifies the "sequela" nature of the condition, indicating it's not an acute injury.
• Verify the specific ligament involved is not the deltoid, calcaneofibular, or tibiofibular, as those have more specific codes.
• Confirm the laterality of the ankle is not specified in the documentation, as this code is for an "unspecified" ankle.