R97 – Abnormal tumor markers
ICD-10-CM 2027 diagnosis code · Abnormal tumor markers (R97)
ICD-10-CM code
R97
- Code
R97(claims format:R97)- Description
- Abnormal tumor markers
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
- Block
- R97 Abnormal tumor markers (R97)
Billable codes under R97
R97 is a header code and cannot be used on claims. Choose the most specific code:
- R97.0 – Elevated carcinoembryonic antigen [CEA]Billable
- R97.1 – Elevated cancer antigen 125 [CA 125]Billable
- R97.2 – Elevated prostate specific antigen [PSA]Header (more codes below)
- R97.8 – Other abnormal tumor markersBillable
Notes for R97
Applicable to:
- Elevated tumor associated antigens [TAA]
- Elevated tumor specific antigens [TSA]
Frequently asked questions
What is ICD-10 code R97?
R97 is the ICD-10-CM code for abnormal tumor markers, in the block R97 (Abnormal tumor markers (R97)).
Is R97 a billable code?
No. R97 is a header code with more specific child codes; report one of the billable codes listed above.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.