Unsp fracture of left calcaneus, subs for fx w malunion

This code signifies an unspecified break in the left heel bone that is currently undergoing treatment for a malunion. A malunion indicates that the fracture has healed, but in an incorrect or deformed position, potentially leading to pain, functional limitations, or altered biomechanics.

This code is appropriate for follow-up encounters where a patient is being managed for a previously diagnosed, unspecified left calcaneal fracture that has healed improperly. This includes situations where surgical correction of the malunion is being planned or performed, or when conservative management of the malunion's symptoms is ongoing.

• Ensure documentation clearly states "left calcaneus" and "malunion" for accurate code assignment.
• This code is for subsequent encounters; an initial encounter would use a different code.
• Look for documentation of ongoing treatment or assessment related to the malunion, not just the initial fracture.