Central registries are responsible for providing to hospitals a list of the mandatory and optional ICD-9-CM codes that should be included for casefinding purposes per the reporting rules of the state or region.

• A. Central registries
• B. Hospitals
• C. Government agencies
• D. Cancer centers

Answer: (A)

Central registries define and distribute the standardized ICD-9-CM codes used to identify cancers for reporting. They provide hospitals with the list of codes that are mandatory (and optional) for casefinding, aligned with state or regional reporting rules. Hospitals rely on this list to screen records and determine which cases must be reported to the registry, ensuring consistent, complete data across institutions. Government agencies may set the reporting requirements, but the responsibility of supplying the code list to hospitals sits with the central registries, while cancer centers are the reporting recipients and treatment sites.