Reporting Outside Image Reviews
When a radiologist is asked to provide a “second opinion” or “overread” of images acquired at an outside facility, the service may be coded in one of two ways. How it is reported and whether it is reimbursable ultimately depends on the clinical context and the specific reason for the request.
For Medicare, payment for a re-read is limited to unusual circumstances, such as a questionable finding for which the physician who performed the initial interpretation believes another physician’s expertise is needed, or a changed diagnosis resulting from the subsequent review.
What To Document
To support a second-opinion read, the report needs to do more than state “outside images reviewed.” It should include:
- Requester: Name the ordering physician or clinical service (e.g., Oncology)
- Clinical Indication: State why another interpretation of the same images was medically reasonable and necessary. Examples of valid medical necessity include:
- Unresolved Findings: Clarification of an equivocal or indeterminate outside finding, or evaluation of a newly identified finding
- Clinical Discordance: Resolution of a clinical-imaging or imaging-pathology disagreement
- Management Milestones: Assessment of disease staging or interval treatment response to inform current care decisions
- Pre-Procedural Planning: Verification of specific anatomy, measurements, lesion extent, or targets needed for biopsy, localization, or surgery
- Outside study reviewed: Identify the modality, outside facility, and original study date.
- Independent interpretation: Provide a standalone breakdown of findings and impression.
- Clinical contribution (when applicable): Document any clinically significant difference from the outside read, or state how the overread informed the patient’s diagnosis or treatment plan.
Coding Considerations
If the following criteria are met, the outside image review may be billed using the same CPT code as the original interpretation with modifier 77 (Repeat procedure by another physician):
- Request: Must have a written order from the treating physician for the second opinion. The request should be documented in the report, or a copy of the order must be available to the coding team.
- Medical Necessity: Must have documentation explaining why an additional interpretation was medically reasonable and necessary.
If the above criteria for an independent exam interpretation are not met, the service will be considered a standard overread and assigned CPT code 76140 (Consultation on X-ray examination made elsewhere, written report). Medicare does not reimburse 76140, and many commercial payers follow similar nonpayment policies.
