Disp fx of ant pro of unsp calcaneus, subs for fx w nonunion

This code signifies a fracture of the anterior process of the calcaneus (heel bone) that is out of alignment and has failed to heal properly. The fracture location is not specified as left or right. This diagnosis is used when the patient is receiving active treatment for the nonunion, such as casting, surgical intervention, or medication management.

This code is appropriate for subsequent encounters when a patient is being treated for a previously diagnosed displaced anterior calcaneal fracture that has not united. This includes follow-up appointments for ongoing management of the nonunion, such as monitoring healing progress, adjusting treatment plans, or preparing for further surgical intervention. It should be used when the laterality of the fracture is not documented.

• Ensure documentation clearly states "nonunion" and that the fracture is of the anterior process of the calcaneus.
• Verify that the encounter is for active treatment of the nonunion, not just routine follow-up after successful healing.
• If laterality (left or right) is specified in the medical record, a more specific code should be selected.