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NAACCR Data Dictionary
Data Standards and Data Dictionary
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Change Log

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Log of changes to Data Standards and Data Dictionary, V27, since original publication.

DateItem #Item NameFieldChangeNote
08/06/20261174PD-L1CodesRevised Code 1, deleted codes 2 and 3, added Code Definition to Code 7. 
08/07/20263850HER2 IHC SummaryRSTRevised code from "." to "RC" 
08/07/20263854HER2 ISH SummaryRSTRevised code from "." to "RC" 
08/17/20263850HER2 IHC SummaryRSTRevised code from "RC" to "RH*" 
08/17/20263854HER2 ISH SummaryRSTRevised code from "RC" to "RH*"