How to Bill CPT 93308 for Radiology and Diagnostic Imaging Services

Feb 3, 2026

When to Use CPT Code 93308

CPT 93308 is used for radiology or diagnostic imaging services performed to evaluate internal anatomy or physiological function.

  • Service type: Diagnostic imaging
  • Setting: Office, outpatient, or hospital
  • Components: Technical, professional, or global

Common scenarios:

  • Diagnostic evaluation of pain or injury
  • Monitoring disease progression
  • Ruling out acute conditions

Insurance Verification Tips for CPT 93308

  1. Verify prior authorization requirements.
  2. Confirm modifier usage (26, TC, or global).
  3. Check frequency and medical necessity rules.
  4. Ensure correct diagnosis code support.

Example Case of CPT 93308

A provider orders diagnostic imaging to evaluate the patient’s condition.
The imaging study is performed and billed as one unit of CPT 93308.

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