93640
No office rateEp eval 1/2chmbr pacg cvdfb
Choose 93644 for evaluation of a subcutaneous ICD. Code 93640 addresses evaluation of a single- or dual-chamber pacing cardioverter-defibrillator.
On this page
CMS RVU26D · Effective 2026-10-01
93644 Defibrillator evaluation Medicare reimbursement rates in Delaware
Reports electrophysiologic testing of a subcutaneous implantable defibrillator, including assessment of device sensing and shock function in an appropriate clinical setting. Compare 93644 office and facility rates across CMS payment localities in Delaware.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 93644 in Delaware?
Delaware has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$188.16
1 of 1 localities have a supported rate.
Payment area: Delaware
One mapped payment locality.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Electrophysiology
About 93644: Subcutaneous defibrillator electrophysiology evaluation
Reports electrophysiologic testing of a subcutaneous implantable defibrillator, including assessment of device sensing and shock function in an appropriate clinical setting.
This service evaluates a subcutaneous implantable cardioverter-defibrillator (S-ICD), including its sensing and shock functions and, when performed, induced arrhythmia and defibrillation testing. An electrophysiologist typically performs the evaluation in an electrophysiology laboratory or during a device procedure. The work concerns the subcutaneous system rather than a transvenous ICD with leads positioned in the heart.
Report the code when the documented service evaluates the S-ICD; record the device type, testing performed, and findings. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. The service may be billed globally or split into the professional interpretation with modifier 26 and the technical portion with modifier TC. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment requires documented medical necessity; co-surgeon and team-surgery billing are not permitted.
CMS billing rules for 93644
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU2.96 · 52%
- Practice expense (office) RVU2.60 · 46%
- Malpractice RVU0.10 · 2%
38
Medicare services in 2024 · #5534 by national volume
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.
93644 compared with similar codes
Office rates for Delaware, from the same CMS release.
93641
No office rateEp evl 1/2chmb pac cvdfb tst
93641 is for evaluation and testing of a single- or dual-chamber pacing cardioverter-defibrillator system; 93644 identifies the subcutaneous ICD system.
$325.81
93642 applies to a transvenous cardioverter-defibrillator evaluation. Use 93644 for the subcutaneous implantable system.
Compare 93644 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Delaware →
Office / nonfacility
$188.16
Facility
Unavailable
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 93644 in Delaware.
PPRRVU2026_Oct_nonQPP.csv
12,237
- Code
- 93644
- Physician work
- 2.96
- Practice expense
- 2.60
- Malpractice
- 0.10
GPCI2026.csv
40
- Locality
- Delaware
- Physician work
- 1.005
- Practice expense
- 0.988
- Malpractice
- 0.899
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 2.96 | × 1.005 | 2.9748 |
| Practice expense | 2.60 | × 0.988 | 2.5688 |
| Malpractice | 0.10 | × 0.899 | 0.0899 |
| Total RVUs | 5.6335 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Delaware$188.16
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 2.96 | 1.005 |
| Practice expense | 2.6 | 0.988 |
| Malpractice | 0.1 | 0.899 |
(2.96 × 1.005 + 2.6 × 0.988 + 0.1 × 0.899) × $33.4009 = $188.16
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
93644 billing questions
How is 93644 different from 93641?
93644 is for evaluation of a subcutaneous implantable defibrillator. Code 93641 concerns evaluation of a single- or dual-chamber pacing cardioverter-defibrillator system.
Can the professional and technical portions be billed separately?
Yes. Modifier 26 identifies the professional interpretation, and modifier TC identifies the technical service; billing without either modifier represents the global service.
Does same-day care fall within the global period?
Yes. The 0-day global period includes same-day preoperative and postoperative care.
What should the record support?
Document that the device is a subcutaneous ICD, the evaluation and testing performed, and the findings for sensing and shock function.
Can modifier 50 be used for bilateral reporting?
No. CMS identifies bilateral adjustment as inappropriate for this code.
How are other procedures in the same session paid?
The highest-valued procedure is paid in full, while the other procedures are subject to the standard multiple-procedure reduction.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
12,23493642,,Ep evl 1/2chmb trnsvns cvdfb,A,,4.51,4.43,,4.43,NA,0.94,9.88,9.88,1,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,23593642,26,Ep evl 1/2chmb trnsvns cvdfb,A,,4.51,1.96,,1.96,,0.91,7.38,7.38,1,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,23693642,TC,Ep evl 1/2chmb trnsvns cvdfb,A,,0.00,2.47,,2.47,NA,0.03,2.50,2.50,1,000,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,03,0,99,0.00,0.00,0.00
12,23793644,,Ep eval subq impl dfb,A,,2.96,2.60,,2.60,NA,0.10,5.66,5.66,1,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,23893644,26,Ep eval subq impl dfb,A,,2.96,1.10,,1.10,,0.09,4.15,4.15,1,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,23993644,TC,Ep eval subq impl dfb,A,,0.00,1.50,,1.50,NA,0.01,1.51,1.51,1,000,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,03,0,99,0.00,0.00,0.00
12,24093650,,Icar cath abltj av node func,A,,9.98,2.55,NA,2.55,,2.35,14.88,14.88,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3704112,CO,01,COLORADO,1.012,1.064,0.781
3813102,CT,00,CONNECTICUT,1.020,1.077,1.210
3912202,DC,01,DC + MD/VA SUBURBS,1.054,1.178,1.113
4012102,DE,01,DELAWARE,1.005,0.988,0.899
4109102,FL,03,FORT LAUDERDALE,1.000,1.013,1.808
4209102,FL,04,MIAMI,1.000,1.041,2.529
4309102,FL,99,REST OF FLORIDA,1.000,0.956,1.503