California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures for Hospitals
Enter the name or code number of the attending physician—not a resident or intern—responsible for the patient. If a different physician is to receive the next follow-up letter, enter that physician's name or code number. (For instructions about entering codes, see Section III.3.12.1.)
Enter code 99999999 if there is no Follow-Up Physician.
Enter code 99999999 if the Follow-Up Physician is "unknown" or "license number not assigned."
Beginning with cases diagnosed January 1, 2007, enter the physician NPI code in the respective field, if it is available. See Appendix X for further details.