Path fracture in oth disease, l ulna, subs for fx w malunion

This code signifies a fracture of the left ulna that occurred due to an underlying disease process, not trauma, and has subsequently healed improperly (malunion). The patient is presenting for follow-up care or treatment related to this malunited pathological fracture.

Apply this code when a patient is seen for ongoing management of a malunited left ulnar fracture that resulted from a systemic condition like osteoporosis, bone tumor, or metabolic bone disease. Documentation should clearly state "pathological fracture," specify the left ulna, confirm malunion, and indicate a "subsequent encounter" for care after the initial treatment phase.

• Ensure documentation specifies "pathological" to differentiate from traumatic fractures.
• Verify the laterality (left) and the specific bone (ulna) are clearly documented.
• Confirm the encounter type is "subsequent" and that "malunion" is explicitly stated, not just "nonunion" or "delayed healing."