R97.1 – Elevated cancer antigen 125 [CA 125]

ICD-10-CM 2027 diagnosis code · Abnormal tumor markers (R97)

Billable code

ICD-10-CM code R97.1
Code
R97.1 (claims format: R971)
Description
Elevated cancer antigen 125 [CA 125]
Billable
Yes – valid for HIPAA-covered transactions
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)
Parent codes
R97

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R97 – Abnormal tumor markers

Applicable to:
  • Elevated tumor associated antigens [TAA]
  • Elevated tumor specific antigens [TSA]

Index terms for R97.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in R97

Frequently asked questions

What is ICD-10 code R97.1?

R97.1 is the ICD-10-CM code for elevated cancer antigen 125 [CA 125], in the block R97 (Abnormal tumor markers (R97)).

Is R97.1 a billable code?

Yes. R97.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does R97.1 belong to?

It belongs to category R97 – Abnormal tumor markers.

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.