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ICD-10/R97

R97 ICD-10-CM Code: Abnormal tumor markers

R97 is the authoritative medical code for Abnormal tumor markers. This classification is used in medical billing and clinical recording to specify the clinical criteria for abnormal tumor markers (ICD-10-CM R97), ensuring healthcare documentation aligns with current federal coding standards.

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Abnormal tumor markers is a non-billable ICD-10-CM category code (R97). A more specific billable subcode must be selected for claims submission. Inclusion terms: Elevated tumor associated antigens [TAA]; Elevated tumor specific antigens [TSA].

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for R97 in the official ICD-10-CM tabular list.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Elevated tumor associated antigens [TAA]
  • Elevated tumor specific antigens [TSA]

Frequently Asked Questions (FAQ) & Clinical Guidance

Can R97 be billed directly?

No. R97 (Abnormal tumor markers) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

What conditions are included under R97?

Abnormal tumor markers includes: Elevated tumor associated antigens [TAA]; Elevated tumor specific antigens [TSA].

Nearest Codes in This Family

Official ICD-10-CM classifications closest to R97 in its code family, with their registry titles.

  • R97.0 — Elevated carcinoembryonic antigen [CEA]
  • R97.1 — Elevated cancer antigen 125 [CA 125]
  • R97.2 — Elevated prostate specific antigen [PSA]
  • R97.20 — Elevated prostate specific antigen [PSA]
  • R97.21 — Rising PSA following treatment for malignant neoplasm of prostate
  • R97.8 — Other abnormal tumor markers