Displ commnt fx left patella, subs for clos fx w routn heal

This code signifies a left patellar fracture that has broken into multiple fragments and is no longer in its anatomical alignment. The patient is in a subsequent phase of care, meaning the initial treatment has been rendered, and the fracture is now undergoing routine healing without surgical intervention during this encounter.

Apply this code for follow-up visits where a patient with a previously diagnosed displaced comminuted left patella fracture is being monitored for healing. This includes appointments for cast changes, wound checks (if applicable), or imaging to assess fracture consolidation, provided the healing is progressing as expected for a closed fracture.

• Ensure documentation specifies "displaced" and "comminuted" for the left patella.
• Confirm the encounter is for routine healing of a closed fracture, not an open one or one with delayed/nonunion.
• Pair with appropriate external cause codes if the injury mechanism is known and relevant for the encounter.