Data Last Updated: June 9, 2025

NAACCR Item #3818: CA-125 Pretreatment Interpretation

Item # Length Source of Standard Section Name Year Implemented Version Implemented XML NAACCR ID Parent XML Element
3818 1 NAACCR Stage/Prognostic Factors 2018 18 ca125PretreatmentInterpretation Tumor
Alternate Names
  • : CA-125 (Carbohydrate Antigen 125) Pretreatment Interpretation
Required Status:

NPCR Collect: No recommendation
CoC Collect: Required, site specific
SEER Collect: Required, site specific
CCCR Collect: Required, site specific; when available

Description
Carbohydrate Antigen 125 (CA-125) is a tumor marker that is useful for following the response to therapy in patients with ovarian cancer, who may have elevated levels of this marker.
Rationale
Preoperative CA-125 is a Registry Data Collection Variable listed in AJCC. It was previously collected as Ovary, CS SSF# 1.
Allowable Values
0-2, 7-9
Codes
Code Description
0 Negative/normal; within normal limits
1 Positive/elevated
2 Stated as borderline; undetermined whether positive or negative
7 Test ordered, results not in chart
8 Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 8 will result in an edit error)
9 Not documented in medical record CA-125 not assessed or unknown if assessed
Code Notes
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.