Posterior sublux of proximal end of tibia, left knee, subs

This code indicates a partial dislocation of the upper part of the shin bone (tibia) at the knee joint, specifically where the tibia has shifted backward relative to the femur. It refers to an injury that is currently receiving follow-up care after the initial treatment phase.

Use this code for encounters where a patient is receiving ongoing treatment, such as physical therapy, cast changes, or follow-up evaluations, for a previously diagnosed posterior subluxation of the left proximal tibia. This applies after the initial acute treatment has been completed.

• Ensure documentation specifies "posterior subluxation" and not a complete dislocation.
• Verify the laterality (left knee) is clearly documented.
• Confirm the encounter is for subsequent care, not the initial treatment or sequela.