Purpose of the Cancer Registry
A cancer registry is a systematized collection of data about cancer cases, used to track incidence, treatment patterns, and survival outcomes. Registries support cancer research, public health surveillance, and quality improvement at facility, state, and national levels. RHIA candidates should understand both the operational and regulatory aspects of registry management.
Case Finding and Abstracting
Case finding is the process of identifying all reportable cancer cases within a facility, typically using pathology reports, discharge lists, and radiation or medical oncology logs as source documents. Once identified, cases undergo abstracting, in which trained registrars extract standardized data elements including diagnosis date, primary site, histology, stage, treatment, and follow-up information into the registry database.
Staging Systems
Cancer staging describes the extent of disease at diagnosis and guides treatment decisions and prognosis. Common staging systems include the American Joint Committee on Cancer TNM system, which classifies tumor size, lymph node involvement, and metastasis, and Summary Stage, a simplified system used primarily for population-based reporting.
Data Elements Commonly Abstracted
- Patient demographics and identifying information
- Primary site and histology using ICD-O-3 codes
- Stage at diagnosis and staging system used
- First course of treatment, including surgery, radiation, and systemic therapy
- Follow-up status and vital status over time
NAACCR Standards
The North American Association of Central Cancer Registries, or NAACCR, establishes uniform data standards and a standardized record layout used by central cancer registries throughout the United States and Canada. NAACCR certification levels reflect the completeness and quality of data submitted by state registries.
Commission on Cancer Requirements
The Commission on Cancer, or CoC, accredits cancer programs that meet defined standards for cancer care quality, including registry operations. CoC-accredited facilities must maintain a cancer registry meeting specific case-finding, abstracting timeliness, and follow-up rate requirements, typically requiring at least 90 percent of patients to have current follow-up information.
Data Use and Reporting
Registry data supports internal quality improvement, tumor board case presentations, survival analysis, and reporting to state central registries, which in turn contribute to national databases such as the National Cancer Database. HIM professionals overseeing registries must ensure data quality, timeliness, and confidentiality throughout this reporting chain.