Sprain of unspecified site of left knee, sequela

This code signifies a chronic or residual condition resulting from a previous sprain injury to the left knee, where the specific ligament or structure affected is not documented. It indicates that the patient is experiencing ongoing symptoms or complications directly attributable to the historical sprain, rather than an acute injury.

Apply this code when documenting a patient presenting with persistent pain, instability, stiffness, or other long-term issues in the left knee that are clearly linked to a past sprain. This is appropriate for follow-up visits concerning the lasting effects of an old injury, after the initial acute healing phase has passed.

• Ensure documentation clearly states the left knee and indicates a "sequela," "chronic," or "residual" status of a sprain.
• Avoid using this code for acute or subacute sprains; those require codes from the initial or subsequent encounter categories.
• If the specific ligament involved in the left knee sprain is known and documented, a more specific sequela code should be used.