Lateral dislocation of unspecified patella, init encntr

This code signifies a traumatic displacement of the kneecap from its normal position, specifically to the outer side of the knee. It indicates the initial presentation of this injury, prior to definitive treatment. This type of dislocation often results in acute pain, swelling, and an inability to bear weight.

Apply this code for patients presenting with a newly diagnosed lateral patellar dislocation, regardless of the mechanism of injury. It is appropriate for the initial emergency department visit, urgent care, or first physician encounter where the diagnosis is established. This code should be used before any reduction procedures or subsequent follow-up care.

• Ensure documentation specifies "lateral" dislocation and that it is the "initial encounter."
• Do not use this code for recurrent dislocations or follow-up visits after the initial treatment.
• Always code the specific laterality (left or right) if known; this code is for unspecified laterality.