Posterior disloc of proximal end of tibia, l knee, sequela

This code signifies a chronic or late-effect condition resulting from a prior posterior dislocation of the upper part of the tibia in the left knee. It indicates that the initial injury has resolved, but the patient is still experiencing residual problems or complications directly attributable to that past dislocation.

Apply this code when documenting ongoing issues such as chronic pain, instability, limited range of motion, or degenerative changes in the left knee, where the underlying cause is a previously treated posterior tibial dislocation. This code is appropriate for follow-up encounters after the initial injury has healed, but sequelae persist.

• Always link this sequela code to an external cause code (V00-Y99) if the original injury's cause is known and relevant to the current encounter.
• Do not use this code for the initial treatment of an acute posterior tibial dislocation; instead, use the appropriate acute injury code.
• Consider adding a secondary code to specify the exact nature of the sequela (e.g., chronic pain, osteoarthritis, ligamentous laxity).