Other dislocation of unspecified patella, sequela

This code signifies a long-term complication or residual effect stemming from a past dislocation of the kneecap, where the specific side (left or right) of the patella was not documented. These sequelae can include chronic instability, persistent pain, or degenerative changes in the joint following the initial injury.

Apply this code when documenting a patient presenting with ongoing issues directly attributable to a previous patellar dislocation, and the medical record does not specify which knee was affected. This is appropriate for follow-up encounters addressing the chronic consequences of the injury, rather than the acute event itself.

• Ensure documentation clearly links the current condition to a prior patellar dislocation.
• Only use this code when the laterality of the original injury is truly unspecified in the medical record.
• Always sequence this code after the primary diagnosis describing the specific sequela (e.g., chronic patellar instability).