Modifier 76- Repeat Procedure by Same Physician

Modifier 76 is used when the same procedure or service must be repeated by the same physician or qualified healthcare professional.

What Is Modifier 76?

Modifier 76 identifies a repeat procedure or service performed by the same physician or other qualified healthcare professional.

It is used when the same service must legitimately be performed again and the repeat service is medically necessary. CMS recognizes Modifier 76 for repeat procedures, including appropriate same-day repeat services.

The modifier is generally appended to the subsequent occurrence of the procedure rather than the original service.

Modifier 76 helps distinguish a medically necessary repeat service from an accidental duplicate claim.

When to Use Modifier 76

Same Provider: The same physician or qualified healthcare professional performs the original and repeated service.

Same Procedure: The same CPT or HCPCS procedure or service is repeated.

Medical Necessity: The patient's circumstances support performing the service again.

Separate Encounter or Session: For Medicare hospital outpatient reporting, Modifier 76 may identify the same procedure performed during a separate operative session or encounter on the same day.

Serial Diagnostic Services: Modifier 76 may apply when the same physician performs medically necessary repeat interpretations or procedures, such as qualifying serial X-rays or EKGs.

When NOT to Use Modifier 76

Different Provider Performs Repeat Service: Modifier 77 is generally appropriate when another physician or qualified healthcare professional performs the repeated procedure.

Repeat Laboratory Test: Modifier 91 may be more appropriate for a medically necessary repeat clinical diagnostic laboratory test.

Accidental Duplicate Claim: Do not use Modifier 76 merely to prevent a legitimate duplicate claim from being rejected.

Different Procedure: Modifier 76 requires repetition of the same procedure or service.

Routine Multiple Units: Do not use Modifier 76 simply because multiple units of the same service are appropriately reported.

To Bypass an NCCI Edit: CMS specifically states that Modifier 76 is not an NCCI PTP-associated modifier and does not bypass an NCCI PTP edit.

Billing Example

A physician performs a diagnostic procedure on a patient.

Later that day, a change in the patient's condition makes it medically necessary for the same physician to repeat the same procedure.

The original service is reported normally.

The subsequent procedure is reported again with Modifier 76 to indicate that it represents a medically necessary repeat service rather than an accidental duplicate.

Documentation should explain why repeating the procedure was necessary.

Documentation Requirements

Original Service: Document the initial procedure or service performed.

Repeated Service: Clearly document that the same procedure was subsequently repeated.

Medical Necessity: Explain why repeating the service was clinically necessary.

Timing: Record when the original and repeat services occurred, particularly for same-day services.

Provider Identity: Documentation should establish that the same physician or qualified healthcare professional performed the repeated service.

Clinical Circumstances: Describe any change in condition or other circumstance supporting the repeat procedure.

Billing and Claim Considerations

Modifier 76 is particularly important when the same procedure code appears more than once for the same patient and date of service.

Without an appropriate modifier and supporting circumstances, the second service may appear to be an accidental duplicate.

CMS hospital outpatient guidance states that the procedure should be listed once and then listed again with the appropriate repeat-procedure modifier. Modifier 76 is used when the same physician or qualified healthcare professional repeats the service; Modifier 77 applies when another practitioner performs it.

Modifier 76 does not automatically establish medical necessity. The medical record must support why the repeated service was required.

Providers should also review code-specific and payer-specific requirements because certain repeated services have specialized reporting rules.

Common Billing Mistakes

Appending 76 to the Original Service: Modifier 76 generally identifies the subsequent repeated service.

Confusing 76 With 77: Modifier 76 applies when the same practitioner repeats the service; Modifier 77 applies when another practitioner performs it.

Confusing 76 With 91: Modifier 91 specifically addresses qualifying repeat clinical diagnostic laboratory tests.

Reporting a Duplicate as a Repeat: An accidental duplicate claim does not become separately payable by adding Modifier 76.

Missing Medical Necessity: Documentation should establish why performing the same service again was necessary.

Using 76 to Override NCCI: CMS states that Modifier 76 does not bypass an NCCI PTP edit.

Common Denial Reasons

Repeat Service Not Supported: Documentation does not demonstrate that the procedure was actually repeated.

Medical Necessity Missing: The record does not explain why another performance of the service was necessary.

Incorrect Modifier: The circumstances support Modifier 77, 91, or another modifier instead.

Duplicate Claim: The payer determines that the second line represents an accidental duplicate rather than a separate repeat service.

Different Procedure Reported: The subsequent service is not the same procedure as the original.

Payer Requirements Not Met: Additional documentation or claim information required for the repeated service is missing.

Modifier 76 vs. Modifier 77

Modifier 76: Same physician or qualified healthcare professional repeats the procedure or service.

Modifier 77: Another physician or qualified healthcare professional repeats the procedure or service.

The primary distinction is who performed the repeated service.

Modifier 76 vs. Modifier 91

Modifier 76: Identifies a repeated procedure or service by the same practitioner.

Modifier 91: Identifies a medically necessary repeat clinical diagnostic laboratory test.

CMS specifically addresses Modifier 91 for repeat laboratory testing and notes that repeat testing cannot be performed merely to confirm an initial result when one reportable result is all that is required.

Frequently Asked Questions

Can Modifier 76 be used for a repeat procedure on the same day?
Yes. CMS recognizes Modifier 76 for qualifying same-day repeat procedures, including separate operative sessions or encounters in hospital outpatient reporting.

Does Modifier 76 override an NCCI edit?
No. CMS's 2026 NCCI Policy Manual specifically states that Modifier 76 is not an NCCI PTP-associated modifier and does not bypass an NCCI PTP edit.