ICD-10-CM · Chapter 18 · R00-R99
R97 Abnormal tumor markers
Includes
- Elevated tumor associated antigens [TAA]
- Elevated tumor specific antigens [TSA]
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| R97..0 | Elevated carcinoembryonic antigen [CEA] | Yes |
| R97..1 | Elevated cancer antigen 125 [CA 125] | Yes |
| R97..2 | Elevated prostate specific antigen [PSA] | No |
| R97..20 | Elevated prostate specific antigen [PSA] | Yes |
| R97..21 | Rising PSA following treatment for malignant neoplasm of prostate | Yes |
| R97..8 | Other abnormal tumor markers | Yes |
Last reviewed: September 2026