Other subluxation of unspecified patella, sequela

This code indicates a long-term or late effect of a previous subluxation (partial dislocation) of an unspecified kneecap. It signifies that the patient is experiencing ongoing issues or complications directly attributable to an old injury where the patella partially slipped out of its normal position.

Use this code when documenting chronic pain, instability, or functional limitations in the knee that are a direct consequence of a prior patellar subluxation. This applies when the acute injury has resolved, but residual problems persist. It is appropriate for follow-up visits addressing these lasting effects.

• Always use in conjunction with an external cause code if the original injury mechanism is known and relevant.
• Ensure documentation clearly links the current symptoms or condition to a previous patellar subluxation.
• Verify laterality (left/right) is not specified in the documentation, as this code is for an "unspecified" patella.