A patient who is suffering from osteosarcoma located above the right knee begins chemotherapy treatment at today's encounter. Select the appropriate ICD-10-CM codes to be reported for this encounter:

Question

Quizplus · Accepted Answer

Z51.11 (Encounter for antineoplastic chemotherapy) is listed first to indicate the reason for the current encounter is chemotherapy. C40.21 (Malignant neoplasm of upper end of right fibula) is incorrect as it specifies the fibula; the correct code for osteosarcoma located above the right knee would involve codes for bones of the upper leg, but the principle remains to list the chemotherapy code first followed by the cancer diagnosis.

A Patient Who Is Suffering from Osteosarcoma Located Above the Right