Pathological fracture in neoplastic disease, left ulna, init

This diagnosis code signifies a fracture of the left ulna that has occurred due to the weakening of the bone by a neoplastic (cancerous) process, rather than from trauma. It indicates that the patient is receiving active treatment for this specific fracture.

Apply this code when documentation clearly states a pathological fracture of the left ulna caused by an underlying malignancy. This is appropriate for the initial visit where the fracture is diagnosed and/or definitive treatment for the fracture begins. Supporting documentation should include imaging reports confirming the fracture and pathology reports or clinical notes confirming the neoplastic etiology.

• Always sequence the underlying neoplasm code first, followed by this pathological fracture code.
• Ensure the laterality (left ulna) is explicitly documented.
• Distinguish from stress fractures or traumatic fractures; the "pathological" nature due to neoplasm is key.