Sprain of unsp collateral ligament of right knee, sequela

This code indicates a long-term complication or residual effect stemming from a prior sprain of an unspecified collateral ligament in the right knee. This could include chronic pain, instability, stiffness, or functional limitations that persist after the initial injury has healed. It signifies that the patient is still experiencing issues directly related to the original ligamentous sprain.

Apply this code when documenting follow-up care for a patient who previously sustained a right knee collateral ligament sprain and is now presenting with persistent symptoms or complications. This is appropriate for chronic conditions resulting from the initial injury, such as ongoing instability or degenerative changes. Use it when the acute phase of the injury has passed, and the current encounter addresses the lasting impact.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic pain, instability).
• Ensure documentation clearly links the current condition to a past right knee collateral ligament sprain.
• The "S" seventh character indicates a sequela, meaning the patient is being treated for the residual effects of the original injury.