42029-9

LOINC code 42029-9 identifies "Date of conclusive diagnosis Cancer". Documents the date when a conclusive cancer diagnosis (definite statement of malignancy) is made following an initial diagnosis that was based only on ambiguous terminology. The date of the conclusive diagnosis must be greater than two months following the initial (ambiguous terminology only) diagnosis. See page 81 for date format. If the date of conclusive diagnosis is within two months following the initial (ambiguous terminology only) diagnosis, the case does not meet the criteria for ambiguous terminology only. This date will allow analysis of the primary site locations and frequency of cases that were originally diagnosed by ambiguous terminology and later confirmed by other conclusive method. This date will also allow for analysis of the time interval between cancer diagnosis based on ambiguous terminology and confirmation of the cancer diagnosis by conclusive means. The date must be greater than two months from the original/initial diagnosis date. .. NAACCR Data Standards and Data Dictionary Version 11

This code measures Date of conclusive diagnosis in Cancer.XXX. It belongs to the TUMRRGT class in the LOINC classification.

LOINC (Logical Observation Identifiers Names and Codes) is a universal standard for identifying laboratory and clinical observations. It is maintained by the Regenstrief Institute and used worldwide for health data exchange.