Unsp fracture of unsp calcaneus, subs for fx w nonunion

This code signifies a fracture of the heel bone (calcaneus) where the specific type of fracture is not documented. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and the "nonunion" specifies that the bone fragments have failed to heal together after a reasonable amount of time.

Use this code for patients presenting for ongoing treatment of an unhealed calcaneal fracture when the fracture type (e.g., displaced, nondisplaced, comminuted) is not specified in the medical record. This applies to situations where surgical intervention, casting, or other treatments are being provided to address the nonunion.

• Ensure documentation clearly states "nonunion" for the calcaneal fracture.
• Verify that the encounter is for follow-up care, not the initial treatment of the fracture.
• If the specific type of calcaneal fracture is known, a more specific code should be used.