Sprain of medial collateral ligament of left knee, sequela

This code signifies a long-term or late effect resulting from a previous sprain of the medial collateral ligament (MCL) in the left knee. This could manifest as chronic pain, instability, stiffness, or functional limitations that persist after the initial acute injury has healed. It indicates that the current patient encounter is addressing a residual problem directly attributable to that past MCL sprain.

Use this code when documenting a patient presenting with ongoing symptoms or complications of a left knee MCL sprain that occurred in the past and is no longer in the acute or subacute phase of healing. This is appropriate for follow-up visits addressing chronic pain, persistent instability, or functional deficits related to the old injury. It should be used when the current treatment is for the lasting effects, not the initial injury itself.

• Always use in conjunction with an additional code(s) to specify the nature of the sequela (e.g., chronic pain, instability).
• Ensure documentation clearly links the current condition to a previous left MCL sprain.
• Do not use for initial or subsequent encounters for an active MCL sprain; those require acute or subacute codes.