Collaborative Stage

Note 1: 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 ovary cancer.
Note 2: Record the blood or serum CA-125 value for this data item, though clinical record may also show CA-125 test using fluid from the chest or adnominal cavity.
Note 3: Record the CA-125 status (positive or not) 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 ug/ml.

Code	Description
000	Test not done
010	Positive/elevated
020	Negative/normal; within normal limits
030	Borderline; undetermined whether positive or negative
080	Ordered, but results not in chart
999	Unknown Not documented in patient record

CS Site-Specific Factor 1
Carbohydrate Antigen 125 (CA-125)