Practice Test Geeks(CTR) Certified Tumor Registrar Practice Test
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Coding & Classification Systems Flashcards

7 cards from real CTR practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

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  1. According to ICD-O-3, which topography code represents the upper-outer quadrant of the breast?

    Answer: C50.4

    C50.4 designates the upper-outer quadrant of the breast in ICD-O-3 topography coding.

  2. When coding histology in ICD-O-3, what does the fifth digit (behavior code) of '/3' indicate?

    Answer: Malignant, primary site

    In ICD-O-3, behavior code /3 denotes a malignant neoplasm at the primary site.

  3. Which AJCC staging edition introduced the concept of 'clinical prognostic stage' as a required stage group for breast cancer?

    Answer: 8th edition

    The AJCC 8th edition (effective 2018) introduced clinical prognostic stage incorporating biomarkers for breast cancer.

  4. Under SEER Summary Stage 2018, a tumor that has spread to regional lymph nodes but not to distant sites is classified as:

    Answer: Regional

    SEER Summary Stage 2018 classifies regional lymph node involvement as 'Regional' stage.

  5. Which coding system is used to classify the cause of death on a cancer patient's death certificate for registry purposes?

    Answer: ICD-10 (underlying cause)

    ICD-10 (the underlying cause of death classification) is used to code cause of death on death certificates.

  6. What does the 'M' descriptor in AJCC TNM staging represent?

    Answer: Distant metastasis

    In AJCC TNM staging, 'M' represents the presence or absence of distant metastasis.

  7. In ICD-O-3 coding, which histology code is used for 'adenocarcinoma, NOS'?

    Answer: 8140/3

    Histology code 8140/3 represents adenocarcinoma, NOS (not otherwise specified) in ICD-O-3.

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Sources & references

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