R hrt coronary artery angio
CPT 93456 covers right heart catheterization combined with coronary artery imaging to examine blood flow and pressure in the right side of the heart while visualizing the coronary arteries that supply blood to the heart muscle.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Ensure documentation clearly separates right heart catheterization measurements from coronary angiography findings with distinct reporting of pressures, saturations, and vessel anatomy
Impact: Prevents $1040.59 denial; missing either component documentation can result in downcoding to single-procedure code with 40-60% payment reduction
Verify that both right heart catheterization data (RA, RV, PA, PCWP pressures) and coronary angiography findings (vessel-by-vessel assessment) are documented in separate report sections
Impact: Auditors specifically look for both components; inadequate hemodynamic data can trigger $400-500 recoupment
Do not bill 93456 with left heart catheterization codes (93452-93461) on same date; use comprehensive combination codes instead
Impact: Unbundling violations result in 100% denial of separately billed code plus potential fraud investigation
Bill contrast media separately using HCPCS codes (Q9965-Q9967) as 93456 does not include contrast supply reimbursement
Impact: Recovers additional $150-300 per case depending on contrast volume and type used
When procedure includes additional interventions, confirm medical necessity documentation supports both diagnostic catheterization and intervention components
Impact: Prevents denial of the $1040.59 diagnostic component when bundled with higher-value interventional codes
For Medicare patients, verify cardiac catheterization is performed in approved facility with proper accreditation to avoid site-of-service denials
Impact: Non-accredited facility billing results in 100% denial of $1040.59 with no appeal pathway
Applicable modifiers
When to use: When billing only the professional component (physician interpretation) while facility bills technical component separately
Reimbursement impact: Reduces payment to professional component only; splits the total $1040.59 between professional and technical components
When to use: When billing only the technical component (equipment, staff, supplies) while physician bills professional component separately
Reimbursement impact: Facility receives technical portion only; complementary to modifier 26 split billing
When to use: To indicate distinct procedural service when performed with other cardiac catheterization procedures that might otherwise be bundled
Reimbursement impact: Prevents denial for services that appear bundled but are actually separate and medically necessary procedures
When to use: Rarely applicable to 93456 but may be used if documentation specifies laterality for unusual anatomic variations
Reimbursement impact: Minimal impact on reimbursement but improves documentation specificity
When to use: When procedure is discontinued due to patient instability or complications before completion
Reimbursement impact: Reduces reimbursement proportionally based on extent of procedure completed; typically 50-75% of full payment
When to use: When returning to cath lab for unplanned related procedure during global period
Reimbursement impact: May reduce payment but ensures reimbursement for medically necessary return procedures
Common denials
Insufficient documentation of right heart catheterization component - missing hemodynamic measurements or oxygen saturation data
How to appeal: Submit complete hemodynamic report showing RA, RV, PA, and PCWP pressures with oxygen saturations; include time-stamped pressure tracings and calculations; cite medical necessity for right heart assessment in clinical notes
Bundling denial when billed with left heart catheterization or other comprehensive cardiac cath codes on same date
How to appeal: Review CMS bundling edits (NCCI); if procedures were truly separate and distinct, resubmit with modifier 59 and documentation explaining why both were medically necessary; often better to withdraw and rebill with correct combination code
Medical necessity denial for performing both right heart cath and coronary angiography in same session
How to appeal: Provide clinical documentation supporting need for comprehensive hemodynamic and anatomic assessment; cite specific indications like pre-transplant evaluation, pulmonary hypertension with CAD risk factors, or combined heart failure and ischemic evaluation
Denial for repeat procedure within short timeframe without clear medical necessity documentation
How to appeal: Submit detailed clinical notes explaining change in patient condition, inadequate prior study, or interval event requiring repeat assessment; include comparison of findings showing clinical progression or new pathology
Frequently asked questions
What is the Medicare reimbursement rate for CPT 93456 in 2025?
The 2025 Medicare national average reimbursement for CPT 93456 is $1040.59 for both facility and non-facility settings. This rate is based on 32.17 total RVUs multiplied by the 2025 conversion factor of 32.3465.
What is the difference between CPT 93456 and 93453?
CPT 93456 includes both right heart catheterization with coronary angiography, while CPT 93453 includes combined right and left heart catheterization with coronary angiography. Code 93453 is more comprehensive and includes left ventricular and aortic pressure measurements in addition to the components in 93456.
Can CPT 93456 be billed with left heart catheterization codes?
No, CPT 93456 should not be billed separately with left heart catheterization codes. If both right and left heart catheterization are performed with coronary angiography, use comprehensive combination code 93453 instead to avoid unbundling violations and denials.
How many RVUs is CPT code 93456 worth in 2025?
CPT 93456 has a total of 32.17 RVUs in 2025, consisting of 5.9 work RVUs, 25.12 practice expense RVUs, and 1.15 malpractice RVUs. The facility and non-facility PE RVUs are the same at 25.12.
What documentation is required to bill CPT 93456?
Documentation must include complete right heart hemodynamic measurements (RA, RV, PA, PCWP pressures and oxygen saturations), cardiac output measurements, vessel-by-vessel coronary angiography findings, access site documentation, fluoroscopy time, contrast volume, medical necessity indication, and post-procedure assessment.
Does CPT 93456 include contrast media in the reimbursement?
No, the $1040.59 Medicare reimbursement for CPT 93456 does not include contrast media. Contrast agents should be billed separately using appropriate HCPCS codes (Q9965-Q9967) based on the type and volume of contrast used.
What are common denial reasons for CPT 93456?
Common denials include insufficient documentation of right heart catheterization measurements, bundling issues when billed with other cardiac cath codes, lack of medical necessity for performing both components in the same session, and missing hemodynamic data or coronary angiography findings in the procedure report.