NCRA ODS-C Oncology Data Specialist Vocabulary Game
Exam terms with clues and explanations by OpenExamPrep.
About the NCRA ODS-C Oncology Data Specialist Vocabulary Games
4 free word games built on 20 NCRA ODS-C Oncology Data Specialist terms across 4 topics. Every game deals terms at random and shows what each term means, so you can keep playing as long as you like.
How to Play
- 1.Read the clue and type the term (3 to 6 letters).
- 2.Green: right spot. Yellow: wrong spot. Gray: not in the term.
- 3.Solve it in 6 tries, then read the explanation.
- 1.Swap two neighboring tiles to line up 3 of the same term.
- 2.Longer lines, two lines at once and chains score more.
- 3.Play until no swap can make a line.
- 1.Flip two cards. A matching pair stays face up.
- 2.Each pair you find shows what the term means.
- 3.Clear the board in as few moves as you can.
- 1.Find each listed term in the letter grid.
- 2.Drag across its letters: across, down or diagonally.
- 3.Find all five as fast as you can.
Topics in the NCRA ODS-C Oncology Data Specialist Vocabulary Game
Legal and ethics
Operations and quality
Data identification
Coding and abstraction
Sources for these terms (21)
- 45 CFR 164.512 — Uses and disclosures for which an authorization or opportunity to agree or object is not required (CFR 2025 edition) · Source checked 2026-11-04
- 45 CFR 160.103 — Definitions (CFR 2025 edition) · Source checked 2026-11-04
- 45 CFR 46.102 — Definitions (CFR 2025 edition) · Source checked 2026-11-04
- 45 CFR 46.107 — IRB membership (CFR 2025 edition) · Source checked 2026-11-04
- Public Law 104–191 — Health Insurance Portability and Accountability Act of 1996 (govinfo) · Source checked 2026-11-04
- About NAACCR — NAACCR, Inc. · Source checked 2026-11-04
- Overview of the SEER Program — National Cancer Institute · Source checked 2026-11-04
- CDC-NPCR — NCRA Center for Cancer Registry Education · Source checked 2026-11-04
- Cancer Protocol Templates (Current Cancer Protocols) — College of American Pathologists · Source checked 2026-11-04
- Accreditation with Commission on Cancer — American College of Surgeons · Source checked 2026-11-04
- NCI Dictionary of Cancer Terms: biopsy — National Cancer Institute · Source checked 2026-11-04
- NCI Dictionary of Cancer Terms: fluorescence in situ hybridization (FISH) — National Cancer Institute · Source checked 2026-11-04
- NCI Dictionary of Cancer Terms: margin — National Cancer Institute · Source checked 2026-11-04
- NCI Dictionary of Cancer Terms: lymph node — National Cancer Institute · Source checked 2026-11-04
- NCI Dictionary of Cancer Terms: tumor grade — National Cancer Institute · Source checked 2026-11-04
- Cancer Staging — National Cancer Institute · Source checked 2026-11-04
- Summary Stage 2018 — National Cancer Institute SEER Program · Source checked 2026-11-04
- Solid Tumor Rules — National Cancer Institute SEER Program · Source checked 2026-11-04
- About the American Joint Committee on Cancer — American College of Surgeons · Source checked 2026-11-04
- STORE 2025 — Standards for Oncology Registry Entry, updated April 24, 2025 — Commission on Cancer · Source checked 2026-11-04
- References for ODS Certification Examinations in 2026 (updated 12/16/2025) — NCRA · Source checked 2026-11-04
About the ODS-C Exam
The ODS-C credential (Oncology Data Specialist, formerly CTR, Certified Tumor Registrar) is NCRA's certification for cancer registry professionals. The exam has 180 four-option items: 120 closed-book items covering Legal and Ethical Aspects, Registry Operations and Data Identification in 2 hours, a mandatory 15-minute break, then 60 open-book items on Coding and Abstraction in 2 hours using searchable PDF references. Pass or fail is based on the total score compared with a Modified-Angoff cut score. Content covers HIPAA and release of information, NCRA ethics, CoC standards, NAACCR, SEER and NPCR, reportability, casefinding, Class of Case, follow-up, ICD-O-3.2, grade, the Solid Tumor and Hematopoietic rules, AJCC and Summary Stage 2018 staging, and STORE 2025 treatment coding.
Exam sponsor: National Cancer Registrars Association (NCRA) / Meazure Learning. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
180 questions
Time Limit
4 hours + 15-minute break
Passing Score
Total score vs. Modified-Angoff cut score
Reported exam pass rate: 51.4% (2025). about 59% for first-time candidates in 2025; domain scores are not pass/fail This describes exam candidates, not OpenExamPrep users or results from using our resources. Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Frequently Asked Questions
Is the ODS-C vocabulary game free?
Yes. The game is free to play with no sign-up. Signing in adds AI explanations for any term.
How do the ODS-C vocabulary games work?
There are 4 games built on 20 ODS-C terms. In Guess the Term, a clue describes one term and you have six tries to spell it, with green, yellow and gray letters showing how close you are. In Term Match, six terms appear as colored tiles; swap neighbors to line up three or more of the same term, and each match shows what the term means. In Term Pairs, twelve face-down cards hide six pairs of terms; flip two at a time to find each pair, and every pair you find shows what the term means. In Term Search, five terms hide in a grid of letters, reading across, down or diagonally; drag across a term to circle it, and each term you find shows what it means.
Where do the ODS-C terms come from?
OpenExamPrep researched each term from the National Cancer Registrars Association (NCRA) / Meazure Learning content outline and primary sources, listed under Sources on this page. The game is independent study material, not an official exam resource.
What is the ODS-C exam?
The ODS-C (Oncology Data Specialist, Certified) is NCRA's credential for cancer registry professionals. It was called the CTR (Certified Tumor Registrar) until the name changed to ODS effective January 1, 2024, and holders may use ODS, ODS-C or ODS-Certified. The exam covers legal and ethical aspects, registry operations, data identification, and coding and abstraction.
How many questions are on the ODS-C exam and how long is it?
There are 180 four-option questions. The closed-book part has 120 questions (Domains 1–3) with 2 hours; after a mandatory 15-minute break, the open-book part has 60 questions (Domain 4) with 2 hours. Unused time does not carry over, and you cannot return to the closed-book part.