CPT 93595Cardiology

L hrt cath chd nm/abn nt cnj

CPT code 93595 covers left heart catheterization procedures performed on patients with congenital heart defects or other abnormal heart conditions that were not present from birth but are not part of standard coronary artery disease evaluation.

Showing rates for

National Average

Base Medicare rate

$245.51

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

5.5

PE RVU (NF)

1.93

MP RVU

0.16

Total RVU

7.59

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

NCCI bundling edits

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Billing tips

Document the specific congenital or structural abnormality being evaluated in the procedure note and ensure it is the primary indication, not coronary artery disease assessment
Impact: Prevents automatic denials and downcoding to routine catheterization codes (93458-93461), protecting the full $245.51 reimbursement
Never bundle 93595 with routine coronary catheterization codes (93454-93461) unless truly separate and distinct anatomical evaluations with modifier 59 and comprehensive documentation
Impact: Avoids denial for incorrect code combination; inappropriate bundling results in 100% denial of one procedure (potential $245.51 loss)
Link appropriate ICD-10 codes for congenital heart disease (Q20-Q28 series) or structural heart conditions (I42.x for cardiomyopathies) to establish medical necessity
Impact: Ensures first-pass claim acceptance; incorrect diagnosis linking causes 30-40% of initial denials requiring costly resubmission
Include hemodynamic data, oxygen saturation runs, and measurements specific to the congenital/structural defect in documentation to support code selection
Impact: Strengthens audit defense and reduces recoupment risk; comprehensive hemodynamic documentation reduces audit vulnerability by approximately 60%
Bill globally in hospital-owned facilities where physician is employed; split professional/technical components (modifiers 26/TC) only when truly separate entities
Impact: Optimizes reimbursement structure; incorrect component billing can delay payment 30-45 days and require claim resubmission
Verify that any concurrent imaging (echocardiography, angiography) is separately billable and not included in the catheterization service before submitting additional codes

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Frequently asked questions

What is the Medicare reimbursement rate for CPT 93595 in 2025?

The 2025 Medicare national average reimbursement rate for CPT 93595 is $245.51 for both facility and non-facility settings, based on 7.59 total RVUs and the conversion factor of 32.3465.

What is the difference between CPT 93595 and routine left heart catheterization codes?

CPT 93595 is specifically for left heart catheterization performed to evaluate congenital heart disease or structural cardiac abnormalities (not native coronary disease), while codes 93458-93461 are used for routine coronary catheterization primarily assessing coronary artery disease. The indication and documentation must clearly establish congenital or structural abnormality as the primary purpose.

Can CPT 93595 be billed with coronary catheterization codes on the same date of service?

Generally no, unless the procedures represent truly distinct and separate anatomical evaluations with comprehensive documentation justifying both. If billed together, modifier 59 is required with detailed documentation showing the congenital/structural evaluation was separate from coronary assessment, but this combination faces high scrutiny and frequent denials.

What diagnosis codes support medical necessity for CPT 93595?

ICD-10 codes from the Q20-Q28 series (congenital malformations of the cardiac chambers, connections, valves, and great vessels) are primary supporting diagnoses. Additionally, certain structural heart disease codes such as I42.x (cardiomyopathies), I34-I39 (non-rheumatic valve disorders in congenital context), and Q21.x (septal defects) support medical necessity.

How many RVUs is CPT code 93595 worth in 2025?

CPT 93595 has 7.59 total RVUs in 2025, consisting of 5.5 work RVUs, 1.93 practice expense RVUs, and 0.16 malpractice RVUs. The RVU values are identical for both facility and non-facility settings.

Who can perform and bill for CPT 93595?

CPT 93595 should be performed and billed by board-certified cardiologists with specialized training in congenital or structural heart disease, including pediatric cardiologists, adult congenital heart disease (ACHD) specialists, and interventional cardiologists with appropriate expertise. The procedure must be performed in a facility with proper imaging and hemodynamic monitoring capabilities.

What documentation is required to prevent denials for CPT 93595?

Essential documentation includes explicit statement of congenital or structural abnormality as primary indication, detailed hemodynamic pressure measurements from all accessed chambers, oxygen saturation data if evaluating shunts, specific angiographic findings related to the structural abnormality, fluoroscopy time, contrast volume, and appropriate ICD-10 codes from Q20-Q28 series. Ambiguous documentation frequently results in downcoding or denial.