Lateral sublux of proximal end of tibia, right knee, init

This code signifies a partial dislocation of the upper part of the right shin bone, specifically where it meets the thigh bone, without complete separation of the joint surfaces. This type of injury often involves damage to the ligaments that stabilize the knee.

Apply this code for patients presenting with an acute, partial displacement of the proximal tibia on the right side, such as following a traumatic event like a sports injury or fall. It is appropriate for the initial treatment phase of this specific knee subluxation.

• Ensure documentation clearly specifies "subluxation" rather than a complete "dislocation" and laterality (right knee).
• Verify that the encounter is indeed the "initial encounter" for this specific injury; subsequent care would require a different seventh character.
• Look for associated ligamentous injuries, meniscal tears, or fractures, which would require additional codes.