Other subluxation of unspecified knee, initial encounter

This code signifies a partial dislocation of the knee joint where the bones are still in contact but are improperly aligned, and the specific knee (left or right) is not documented. It covers subluxations that don't fit more specific categories like patellar or meniscal subluxations. This is used for the initial treatment of the injury.

Apply this code when documentation indicates a knee subluxation without specifying which knee is affected, and the subluxation is not clearly identified as patellar, meniscal, or other specific ligamentous involvement. This code is appropriate for the very first encounter for this particular injury.

• Ensure documentation explicitly states "unspecified knee" or lacks laterality for the subluxation.
• Verify that the encounter is indeed the initial treatment for this injury; subsequent encounters will require a different seventh character.
• Avoid using this code if a more specific subluxation (e.g., patellar subluxation) or a complete dislocation is documented.