CPT code 93613: 3D mapping, intracardiac electrophysiology2026 Medicare rate & RVUs in California
Report intracardiac three-dimensional electroanatomic mapping as an add-on when it is performed to guide a qualifying electrophysiology procedure, such as arrhythmia ablation.
CMS doesn’t publish an office rate for 93613 in California.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 93613 covers
An electrophysiologist uses a catheter-based mapping system to build a three-dimensional representation of cardiac anatomy and electrical activity. The map can show catheter position and activation patterns within a heart chamber, helping the physician locate arrhythmia pathways or tissue targeted during catheter ablation. This service is typically performed in a hospital electrophysiology lab during an invasive EP procedure.
Report 93613 only with a primary procedure, such as an ablation for supraventricular tachycardia, ventricular tachycardia, or atrial fibrillation; it is not a stand-alone service. The record should support that three-dimensional intracardiac mapping was performed and describe its role in the procedure. CMS treats this as an add-on code billed with the primary procedure and paid within that procedure’s global period. The mapping service is not selected by the number of map points or lesions documented.
This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.
Where 93613 pays more and less in California
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
29 of 29 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Bakersfield, CA | Unavailable | $238.83 |
| Chico, CA | Unavailable | $235.54 |
| El Centro, CA | Unavailable | $235.74 |
| Fresno, CA | Unavailable | $235.54 |
| Hanford, CA | Unavailable | $235.54 |
| Los Angeles, CA | Unavailable | $248.02 |
| Madera, CA | Unavailable | $235.54 |
| Marin County, CA | Unavailable | $257.35 |
| Merced, CA | Unavailable | $235.54 |
| Modesto, CA | Unavailable | $235.54 |
| Napa, CA | Unavailable | $250.47 |
| Oxnard, CA | Unavailable | $244.12 |
| Redding, CA | Unavailable | $235.54 |
| Rest of California | Unavailable | $235.54 |
| Riverside, CA | Unavailable | $248.52 |
| Sacramento, CA | Unavailable | $241.26 |
| Salinas, CA | Unavailable | $240.26 |
| San Benito County, CA | Unavailable | $264.21 |
| San Diego, CA | Unavailable | $241.70 |
| San Francisco, CA | Unavailable | $255.98 |
| San Luis Obispo, CA | Unavailable | $237.13 |
| Santa Clara County, CA | Unavailable | $258.59 |
| Santa Cruz, CA | Unavailable | $240.63 |
| Santa Maria, CA | Unavailable | $240.01 |
| Santa Rosa, CA | Unavailable | $242.65 |
| Stockton, CA | Unavailable | $235.54 |
| Vallejo, CA | Unavailable | $248.49 |
| Visalia, CA | Unavailable | $235.54 |
| Yuba City, CA | Unavailable | $235.54 |
How the 93613 rate is calculated
Each of 93613’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.
How the rate is built · 93613
RVUs × geographic indexes × conversion factor
Work5.10
5.10 RVUs× 1.000 GPCI
Practice expense1.11
1.11 RVUs× 1.000 GPCI
Malpractice1.21
1.21 RVUs× 1.000 GPCI
Adjusted RVUs
7.4200
Conversion factor
$33.4009
Medicare rate
$247.83
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 93613
The CMS indicators that decide how 93613 is paid alongside other services.
CMS payment indicators · 93613
3D mapping, intracardiac electrophysiology
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
93613 compared with similar codes
Compare codes · National
5 codes, side by side
How to choose
- 93609Ventricular mappingTachycardia site
- 93613 is for intracardiac three-dimensional mapping. Code 93609 represents a different intracardiac mapping service, so the documented mapping method determines the choice.
- 93653SVT ablationComprehensive EP evaluation
- 93653 describes the primary EP study and ablation for supraventricular tachycardia. Report 93613 in addition only when three-dimensional mapping is also performed.
- 93654VT ablationComprehensive EP evaluation
- 93654 describes the primary EP study and ablation for ventricular tachycardia; 93613 captures the additional three-dimensional mapping service when performed.
- 93656AF ablationPulmonary vein isolation
- 93656 is the primary EP study and ablation code for atrial fibrillation. Code 93613 is an add-on when intracardiac three-dimensional mapping is performed.
93613 billing questions
Can 93613 be reported by itself?
No. It is an add-on code and must be reported with a qualifying primary procedure, such as an EP ablation.
Which ablation procedures are commonly paired with 93613?
It may accompany procedures such as 93653 for supraventricular tachycardia ablation, 93654 for ventricular tachycardia ablation, or 93656 for atrial fibrillation ablation when three-dimensional mapping is performed.
How is 93613 different from 93609?
93613 represents intracardiac three-dimensional mapping. Code 93609 describes a different intracardiac mapping service; choose based on the mapping performed, not simply because an ablation took place.
What documentation supports 93613?
Document the three-dimensional mapping performed, the cardiac area mapped, and how the map supported the EP procedure or ablation.
Are units based on map points or lesions?
No. Map points and ablation lesions are not separate units of 93613; report the add-on service with its associated primary procedure.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.
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