Posterior disloc of proximal end of tibia, left knee, init

This code signifies a backward displacement of the upper portion of the shin bone (tibia) relative to the thigh bone (femur) in the left knee joint. This injury typically involves significant ligamentous damage and can compromise neurovascular structures.

Apply this code for the initial treatment of a newly diagnosed posterior dislocation of the proximal tibia in the left knee. This often occurs due to high-energy trauma, such as motor vehicle accidents or sports injuries, where a direct blow to the anterior tibia or a hyperextension injury forces the tibia posteriorly.

• Verify laterality (left knee) and the specific type of dislocation (posterior) are clearly documented.
• Ensure "initial encounter" is appropriate for the patient's current phase of care.
• Look for associated injuries, such as ligament tears (e.g., PCL), meniscal damage, or neurovascular compromise, and code them separately.