Displaced intartic fx l calcaneus, subs for fx w nonunion

This code signifies a fracture within the joint space of the left heel bone that has shifted from its normal position and has failed to heal properly. The patient is currently receiving follow-up care for this unhealed fracture.

Apply this code for patients presenting for ongoing treatment, evaluation, or management of a left calcaneal intraarticular fracture that has been previously diagnosed and is now complicated by nonunion. This includes situations where the patient is undergoing further surgical intervention, cast changes, or physical therapy specifically for the nonunion.

• Ensure documentation clearly states "nonunion" and specifies the left calcaneus and intraarticular involvement.
• Verify that this is a subsequent encounter, not the initial treatment for the fracture.
• Always sequence this code with an external cause code if applicable, and any relevant complication codes.