What identification number for a physician is required on all Medicare claims?

For the following questions, use an ICD-9-CM code book and select the appropriate code(s) for the diagnostic statements given

Tony Black presents to the ER because of severe vomiting due to chemotherapy that was completed five hours ago. He is diagnosed with prostate cancer. He is given IV medications to control the vomiting. After three hours the vomiting is controlled and the patient insists on being discharged home.

Typical radiotherapy treatment sessions require the rotation of the therapy unit around the patient. The precision necessary to ensure rotational accuracy mandates that the therapy unit

a. rotate using laser precision. b. rotate around the isocenter of the unit. c. be checked daily for rotational precision. d. all of the above