ICD-O-3 Quiz

*Choose the* [one best answer]{.underline} *for each of the following:*

1.  **For more than twenty-five years, which of the following
    publications has been the standard by which neoplasms have been
    coded throughout the world?**

# International Classification of Diseases (ICD), Ninth Revision

A.  *International Histological Classification of Tumours (IHCT), Second
    Edition*

B.  *International Classification of Diseases for Oncology (ICD-O)*

C.  *International Statistical Classification of Diseases and Related
    Health Problems (ISCDRHP)*

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2.  **ICD-O-3 will be implemented in North America effective with cases
    diagnosed on or after what date?**

    A.  November 10, 2000

    B.  January 1, 2001

    C.  December 31, 2000

    D.  January 1, 2002

3.  **What is perhaps the most important change between ICD-0-2 and
    ICD-0-3?**

    A.  Some ICD-O-2 morphology terms have new codes in ICD-O-3

    B.  There are new synonyms for existing codes

    C.  A small number of disease entities have changed behavior codes

    D.  More than 200 terms and synonyms were added to the leukemia and
        lymphoma section

4.  **In ICD-O-3, some terms which are now considered obsolete have been
    marked as "\[obs\]". In many cases, obsolete terms which had
    specific codes in ICD-O-2 have been**

    A.  Left unchanged in ICD-O-3 so historical data will not be
        affected

    B.  Deleted in ICD-O-3 because they are obsolete

    C.  Moved to the "Not Otherwise Specified" category for the disease

    D.  Assigned new codes, but the old codes are retained in
        parentheses

5.  **The coding rules in ICD-O-3 have been**

    A.  Rewritten

    B.  Clarified

    C.  Made more user-friendly

    D.  All of the above

6.  **The matrix principle is the rule that says**

    A.  The behavior code of a reported diagnosis should never be
        changed regardless of the terminology used by the pathologist

    B.  The behavior codes /0 (benign) and /1 (borderline) are
        problematic and the matrix in the introduction section of
        ICD-O-3 should be consulted

    C.  The behavior code as reported in the microscopic section of the
        pathology report takes precedence over that which is stated in
        the final diagnosis section

    D.  The behavior code of a reported diagnosis may be changed so that
        it truly reflects what the pathologist describes as the behavior

7.  **Which of the following statements is true?**

    A.  Pathologists use the term "grade" as a synonym for "type" or
        "category." Registrars, however, recognize the term "grade" as
        an indicator of cell differentiation.

    B.  Although registrars continue to use the term "grade" as an
        indication of cell differentiation, cell differentiation is no
        longer an important concept in ICD-O-3.

    C.  It is no longer important to recognize when the term "grade"
        refers to category or when it refers to biologic activity
        because they are one in the same.

    D.  Registrars consider the term "grade" as a synonym for "type" or
        "category." Pathologists, however, always use the term "grade"
        as an indicator of cell differentiation.

8.  **In 1998, the World Health Organization and the International
    Society of Urologic Pathologists published a consensus paper
    describing the preferred terminology for tumors of which of the
    following anatomic site?**

    A.  Kidney

    B.  Prostate

    C.  Bladder

    D.  Urethra

9.  **The Uniform Data Standards Committee of the North American
    Association of Central**

**Cancer Registries has approved two new data fields in response to the
implementation**

**of ICD-O-3. The two new fields are:**

A.  "histologic type ICD-O-3" and "ICD-O-3 conversion code"

B.  "histologic type ICD-O-2 code" and "ICD-O-3 code"

C.  "histologic type ICD-O-2 code" and "ICD-O-3 conversion code"

D.  "histologic text" and "ICD-O-3 conversion code"

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10. **During the conversion from ICD-O-2 to ICD-O-3:**

    A.  most terms will copy through without review or change

    B.  a few terms will change number during the conversion

    C.  a few terms that have been split apart will require manual
        review of supporting text fields or original documents

    D.  all of the above