California Cancer Reporting System Standards Volume I: Abstracting and Coding Procedures for Hospitals
In determining whether a tumor is reportable, the basic criterion is a diagnosis of cancer by a physician, surgeon, or dentist, even if it is not pathologically confirmed. For vague and ambiguous diagnostic terms, see Section II.1.6. A positive pathology report takes precedence over any other report or statement in a patient's chart. In case of doubt about the reportability of a tumor, contact the hospital's regional registry for advice.
For benign and borderline brain and CNS tumors, there must be a
corresponding ICD-0-3 histology code for any CNS
tumor-related diagnosis.
See Section II.1.9.1 Reportability - Benign/Borderline Brain and CNS Tumors.