Answer: You should code the findings for the pathologic fracture with 733.14 (Pathological fracture of neck of femur) under ICD-9, and in ICD-10, M84.551A (Pathological fracture in neoplastic disease, right femur, initial encounter for fracture).
You should also report a personal history code for the prostate cancer: That’s V10.46 (Personal history of malignant neoplasm of prostate) for ICD-9 and Z85.46 (Personal history of malignant neoplasm of prostate) for ICD-10.
Finally, because the pathologist specified that the neoplasm involved is metastatic prostate cancer, you should also report 198.5 (Secondary malignant neoplasm of bone and bone marrow) in ICD-9, and C79.51 (Secondary malignant neoplasm of bone) in ICD-10.