Mr elastography
CPT code 76391 covers MR elastography, an advanced MRI technique that measures tissue stiffness to detect abnormalities like liver fibrosis or tumors without a biopsy.
This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
NCCI bundling edits
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Billing tips
Always bill 76391 in conjunction with the appropriate base MRI code (e.g., 74181-74183 for liver MRI) as it is an add-on procedure
Impact: Failure to link with base code results in 100% claim denial; proper pairing ensures full $196.34 reimbursement
Document the specific quantitative stiffness measurements in kilopascals (kPa) and the anatomic region assessed in the radiology report
Impact: Lack of quantitative data accounts for 35-40% of audit recoupments; proper documentation protects the full payment
Verify LCD coverage for the specific anatomic region; Medicare primarily covers liver MRE but coverage varies by MAC for other organs
Impact: Billing for non-covered anatomic regions (e.g., brain MRE in some jurisdictions) results in denial; ABNs can recover costs from patients
Do not bill 76391 on the same date as liver biopsy codes (47000, 47001) without clear documentation of why both were medically necessary
Impact: Concurrent billing raises red flags and may trigger medical necessity denials; proper justification prevents $196.34 loss
Confirm the facility has the specific CPT-required MRE equipment (passive or active driver system) and that it was actually used
Impact: Equipment verification during audits is common; false claims can result in recoupment plus penalties exceeding 3x the $196.34 payment
For facility billing, ensure the charge is captured on the same claim/encounter as the base MRI to demonstrate the add-on relationship
Impact: Split billing across different dates or claims may reduce reimbursement by 20-100% or trigger denials
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