Name Steward Organization Suggested Domain Suggested Domain Description Cde Group Classification
Date first Dx Cancer LOINC Disease characterization
Including Alzheimer's Disease (AD)/AD-Related Dementias (ADRD) diagnosis and multiple chronic conditions (MCCs)
NIH CDEs
  • PhenX
    • Miscellaneous

# Datatype
Text

# Definition Tags
Date of initial diagnosis by a recognized medical practitioner for the tumor being reported whether clinically or microscopically confirmed. See page 81 for date format. For more discussion on determining date of diagnosis, consult the SEER Program Manual or COC FORDS Manual... NAACCR Data Standards and Data Dictionary Version 11 Source: Regenstrief LOINC

# Designation Tags
Date first Dx Cancer Long Common Name Short Name

# Identifier Origin Version
XkXxYt5inig NLM CDEs 12-02-2025-download
21854-5 LOINC 2.69