NAACCR Item #3942: CA 19-9 PreTX Lab Value

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
3,942 6 NAACCR 2021 21

NAACCR XML: Tumor.ca199PretxLabValue

Alternate Names
   Carbohydrate Antigen 19-9 Pretreatment Lab Value

Carbohydrate Antigen (CA) 19-9 Pretreatment Lab Value records the CA 19-9 value prior to treatment. CA 19-9 is a tumor marker that has prognostic significance for pancreatic cancer.


CA 19-9 Pretreatment Lab Value is a strong predictor of resectability in the absence of metastatic disease. It is a new data item for cases diagnosed 01/01/2021+.


0.00.0 Units/milliliter (U/ml) exactly
0.1-9999.90.1-9999.9 U/ml Exact value to nearest tenth in U/ml)
XXXX.110,000 U/ml or greater
XXXX.2Lab value not available, physician states CA 19-9 is negative/normal
XXXX.3Lab value not available, physician states CA 19-9 is positive/elevated/high
XXXX.7Test ordered, results not in chart
XXXX.8Not applicable: Information not collected for this case If this information is required by your standard setter, use of code XXXX.8 may result in an edit error.
XXXX.9Not documented in medical record CA (Carbohydrate Antigen) 19-9 Pretreatment Lab Value not assessed or unknown if assessed
BlankDiagnosis year is prior to 2021

Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.