Site-Specific Factor 12
Carbohydrate Antigen 19-9 (CA 19-9) Lab Value
Notes
**Note 1:** Carbohydrate Antigen 19-9 (CA 19-9) is a tumor marker that has value in the management of epithelial appendiceal malignancies with peritoneal dissemination. **Note 2:** Record to the nearest tenth in Unit/milliliter (U/mL) the highest CA 19-9 lab value documented in the medical record prior to treatment. * For example, code a pre-treatment CA 19-9 value of 60 U/mL as 600 **Note 3:** Code 000 is reserved for exactly 0.0 U/mL (no measurable amount of CA 19-9). Do not round tiny values down to 0.0 U/mL; any measured value less than or equal to 0.1 U/mL should be coded 001. * For code 001, also round 0.11-0.14 U/mL down to 0.1 U/mL * For codes 002-980, round values to the nearest tenth of a U/ml **Note 4:** Use code 997 if an interpretation is documented but the actual lab value is not available in the record.Default
988NAACCR Item
NAACCR #2866| Code | Description |
|---|---|
| 000 | 0.0 Unit/milliliter (U/mL) exactly |
| 001 | 0.1 or less U/mL Stated as less than 0.1 U/mL with no exact value |
| 002-979 | 0.2-97.9 U/mL (Exact value to nearest tenth in U/mL) |
| 980 | 98.0 or greater U/mL |
| 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 |