Site-Specific Factor 1

Carbohydrate Antigen 125 (CA-125)


**Note 1:** Carbohydrate Antigen 125 (CA-125), also known as cancer antigen 125, mucin 16, or MUC16, is a protein which in humans is encoded by the MUC16 gene. CA-125 is a tumor marker or biomarker that may be elevated in the blood of some patients with primary peritoneal carcinoma. **Note 2:** Record only the blood or serum CA-125 value for this data item. Do not record CA-125 test results based on fluid from the chest or abdominal cavity. **Note 3:** Record the CA-125 status prior to treatment. **Note 4:** Normal values may vary with patient age and from lab to lab. The typical human reference ranges are 0 to 35 micrograms per milliliter (ug/ml).




NAACCR #2880


Code Description
010 Positive/elevated
020 Negative/normal; within normal limits
030 Borderline; undetermined whether positive or negative
988 Not applicable: Information not collected for this case
997 Test ordered, results not in chart
998 Test not done (test not ordered and not performed)
999 Unknown or no information
Not documented in patient record