Data Element

Information from the submission form

AJCC Stage Group
Cancer patients with similar prognoses are grouped by using prognostic stage group tables. Clinical and pathological stage groups are defined for each case as appropriate. These disease-specific groups are composed of the following categories: • cT, cN, and cM or pM • pT, pN, and cM or pM • factors for both groups, if applicable Rules for assigning prognostic stage groups: Prognostic stage groups are based on combinations of T, N, M, and relevant prognostic factors and usually define groups of patients with similar outcomes to help define prognosis and appropriate treatment, as well as to enable comparisons of similar groups of patients between institutions and over time.


Important update to AJCC USCDI ONDEC submission

The American Joint Committee on Cancer (AJCC) would like to provide an important update on the Cancer Staging (AJCC TNM), AJCC T Category, AJCC N Category, AJCC M Category, and AJCC Stage Group data elements originally submitted to USCDI ONDEC on October 23, 2020.   The AJCC requests that the USCDI reviewers reconsider the Classification Level of the AJCC data elements based on the recent development of a license agreement that will make the AJCC data elements accessible from the SNOMED CT terminology.  The AJCC feels that the availability of the AJCC data elements in a standard terminology that is freely available and in wide use significantly strengthens the original submission and demonstrates previous challenges have been addressed. The American College of Surgeons and SNOMED International entered into a license agreement to allow AJCC data elements to be included in the SNOMED CT terminology.  Provided below are links to the announcements from both organizations. The original and full comment from the AJCC is linked here:

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