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

This code signifies a posterior displacement of the upper portion of the shin bone (tibia) relative to the thigh bone (femur) in the left knee. This specific dislocation indicates a prior injury that is now being addressed in a follow-up or ongoing treatment setting.

Apply this code when documenting care for a patient who has previously sustained a posterior tibial dislocation of the left knee and is presenting for subsequent treatment, such as cast changes, physical therapy, follow-up imaging, or evaluation of healing. It is appropriate for any encounter after the initial treatment of the acute injury.

• Ensure "subsequent encounter" is clearly documented in the medical record.
• Verify the laterality (left knee) and the specific type of dislocation (posterior).
• Do not use for the initial treatment of the acute injury; a different seventh character would be required.