Path fx in oth disease, l tibia, subs for fx w malunion

This code signifies a pathological fracture of the left tibia that has resulted from an underlying disease process, not from trauma. The fracture is currently in a healing phase, but with evidence of malunion, meaning it has healed in an incorrect or deformed position. This code is used for follow-up care after the initial treatment of the fracture.

Use this code for patients presenting for ongoing management of a left tibial pathological fracture with documented malunion, after the initial encounter for the fracture. This applies to scenarios such as follow-up appointments, physical therapy, or surgical intervention to correct the malunion. Documentation should clearly state "pathological fracture," "left tibia," "malunion," and indicate a subsequent encounter.

• Always code the underlying disease causing the pathological fracture first, followed by this code.
• Distinguish between nonunion (failure to heal) and malunion (healed incorrectly); different codes apply.
• Ensure documentation specifies "subsequent encounter" and the laterality (left tibia) to support code assignment.