CPT 93586Cardiology

Vngrph chd coronary sinus

CPT code 93586 represents imaging of the coronary sinus, a vein that collects blood from the heart muscle, using contrast dye and X-ray technology during a cardiac catheterization procedure.

Showing rates for

National Average

Base Medicare rate

$66.96

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

Work RVU

1.43

PE RVU (NF)

0.51

MP RVU

0.13

Total RVU

2.07

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

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Billing tips

Always verify that 93586 is billed as an add-on to the primary electrophysiology or device implantation procedure code, as it cannot be reported alone
Impact: Prevents automatic denial; billing without primary procedure results in 100% denial of the $66.96 claim
Document the specific clinical indication for coronary sinus venography separately from routine device implantation imaging, emphasizing anatomical mapping necessity
Impact: Reduces medical necessity denials by approximately 35-40% based on common payer audits
Do not bill 93586 when coronary sinus venography is performed solely for device lead positioning verification; only bill when performed for anatomical mapping or diagnostic purposes
Impact: Prevents unbundling denials that would result in $66.96 recoupment plus potential compliance penalties
In facility settings, coordinate with hospital billing to ensure proper modifier 26 usage to avoid duplicate billing of the global service
Impact: Prevents claim rejections and potential overpayment recovery actions; ensures correct component billing
When performed bilaterally or with multiple injections, bill only one unit of 93586 as the code descriptor encompasses all coronary sinus venography performed during the session
Impact: Avoids overcoding and subsequent recoupment of improperly billed units at $66.96 per unit
Ensure fluoroscopy time and contrast injection for coronary sinus are separately documented from other cardiac imaging to support distinct service reporting
Impact: Strengthens documentation for audits and appeals, reducing successful payer challenges by approximately 25%

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Frequently asked questions

What is the Medicare reimbursement rate for CPT code 93586 in 2025?

The 2025 Medicare national average reimbursement rate for CPT 93586 is $66.96 for both facility and non-facility settings. This rate is based on 2.07 total RVUs multiplied by the 2025 conversion factor of 32.3465. Local rates may vary based on geographic adjustment factors.

Can CPT 93586 be billed alone or does it require a primary procedure code?

CPT 93586 is an add-on code and cannot be billed alone. It must be reported with a primary procedure code such as an electrophysiology study, cardiac catheterization, or cardiac device implantation procedure. Billing 93586 without an appropriate primary procedure will result in automatic claim denial.

What is the difference between CPT 93586 and routine fluoroscopy during device implantation?

CPT 93586 represents specific venography of the coronary sinus using contrast injection to map venous anatomy, while routine fluoroscopy for device lead positioning is included in the device implantation code. Bill 93586 only when selective contrast venography is performed for anatomical mapping purposes, not for simple lead positioning verification.

How many RVUs is CPT code 93586 worth in 2025?

CPT 93586 has 2.07 total RVUs in 2025, comprised of 1.43 work RVUs, 0.51 practice expense RVUs, and 0.13 malpractice RVUs. The practice expense RVUs are the same for both facility and non-facility settings at 0.51.

When is modifier 26 required for CPT 93586?

Modifier 26 should be appended to CPT 93586 when billing only the professional component (physician interpretation) in a facility setting where the hospital bills separately for the technical component. This is common in hospital-based catheterization laboratories where component billing is required to avoid duplicate payment.

What procedures commonly require coronary sinus venography (93586)?

Coronary sinus venography is most commonly performed during cardiac resynchronization therapy (CRT) device implantation to map left ventricular tributaries for optimal lead placement, during complex ablation procedures requiring detailed venous anatomy, and in cases of suspected coronary sinus anomalies or venous obstruction.

Is CPT 93586 covered by Medicare and commercial insurance?

Yes, CPT 93586 is covered by Medicare and most commercial payers when medically necessary and properly documented. However, coverage requires demonstration that coronary sinus venography was performed for specific anatomical mapping or diagnostic purposes, not as routine imaging during every device implantation. Medical necessity documentation is critical for reimbursement.