No office rate
Both codes describe congenital heart chamber revision. The operative method separates them: 33735 is for surgery without cardiopulmonary bypass, while 33736 is for surgery with bypass.
On this page
CMS RVU26D · Effective 2026-10-01
33735 Heart chamber revision Medicare reimbursement rates in Arizona
Reports revision of an atrial or ventricular chamber for congenital heart disease when the operation is performed without cardiopulmonary bypass. Compare 33735 office and facility rates across CMS payment localities in Arizona.
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 33735 in Arizona?
Arizona 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
No supported rate
Facility setting
$1206.49
1 of 1 localities have a supported rate.
Payment area: Arizona
One mapped payment locality.
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.
Congenital cardiac surgery
About 33735: Congenital heart chamber revision without bypass
Reports revision of an atrial or ventricular chamber for congenital heart disease when the operation is performed without cardiopulmonary bypass.
This code represents surgical revision of an atrial or ventricular heart chamber for congenital heart disease, with or without use of a patch, when cardiopulmonary bypass is not used. A congenital cardiac surgeon typically performs the operation in a hospital operating room. The operative report should identify the chamber revised and describe the corrective work, including patch use when applicable.
Choose this code when the documented operation is a chamber revision and does not use cardiopulmonary bypass; use the related sibling code when bypass is used. The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this chamber procedure. An assistant at surgery may be paid; co-surgeons and team surgery are not permitted.
CMS billing rules for 33735
- Global period
- Major surgery with a 90-day global period: the day-before preoperative visit and 90 days of related postoperative care are included.
- 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 may be paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU21.65 · 58%
- Practice expense (office) RVU10.12 · 27%
- Malpractice RVU5.45 · 15%
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.
33735 compared with similar codes
Office rates for Arizona, from the same CMS release.
No office rate
33710 identifies repair of a secundum atrial septal defect. Use 33735 when the documented service is revision of an atrial or ventricular chamber instead.
No office rate
33720 identifies repair of a primum atrial septal defect. It is distinct from a documented revision of an atrial or ventricular chamber under 33735.
Compare 33735 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
Arizona →
Office / nonfacility
Unavailable
Facility
$1206.49
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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 33735 in Arizona.
PPRRVU2026_Oct_nonQPP.csv
4,046
- Code
- 33735
- Physician work
- 21.65
- Practice expense
- 10.12
- Malpractice
- 5.45
GPCI2026.csv
6
- Locality
- Arizona
- Physician work
- 1.000
- Practice expense
- 0.969
- Malpractice
- 0.856
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 21.65 | × 1.000 | 21.6500 |
| Practice expense | 10.12 | × 0.969 | 9.8063 |
| Malpractice | 5.45 | × 0.856 | 4.6652 |
| Total RVUs | 36.1215 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Arizona$1206.49
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 21.65 | 1 |
| Practice expense | 10.12 | 0.969 |
| Malpractice | 5.45 | 0.856 |
(21.65 × 1 + 10.12 × 0.969 + 5.45 × 0.856) × $33.4009 = $1206.49
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.
33735 billing questions
How is this code distinguished from 33736?
The cardiopulmonary bypass method distinguishes the two chamber-revision codes. Report 33735 when bypass is not used and 33736 when it is used.
What documentation supports reporting 33735?
The operative report should identify the atrial or ventricular chamber revised, describe the revision and any patch work, and establish that cardiopulmonary bypass was not used.
Can modifier 50 be used?
No. CMS identifies bilateral adjustment as inappropriate for this code because of the procedure and anatomy.
Can an assistant or co-surgeon be reported?
An assistant at surgery may be paid. Co-surgeons and team surgery are not permitted under the CMS rules for this code.
What does the 90-day global period include?
It includes the day-before preoperative visit and 90 days of related postoperative care.
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.
4,0433372F,,Ajcc brst cncr stage 1 docd,I,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04433730,,Repair heart-vein defect(s),A,,35.24,12.12,NA,12.12,,8.89,56.25,56.25,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04533732,,Repair heart-vein defect,A,,28.24,11.42,NA,11.42,,7.11,46.77,46.77,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04633735,,Revision of heart chamber,A,,21.65,10.12,NA,10.12,,5.45,37.22,37.22,0,090,0.09,0.84,0.07,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04733736,,Revision of heart chamber,A,,23.71,10.53,NA,10.53,,5.98,40.22,40.22,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04833741,,Tas congenital car anomal,A,,13.65,2.54,NA,2.54,,3.26,19.45,19.45,0,000,0.00,0.00,0.00,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04933745,,Tis cgen car anomal 1st shnt,A,,19.50,3.64,NA,3.64,,4.68,27.82,27.82,0,000,0.00,0.00,0.00,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
3Medicare Administrative Contractor (MAC),State,Locality Number,Locality Name,2026 PW GPCI (with 1.0 Floor)***,2026 PE GPCI,2026 MP GPCI
410112,AL,00,ALABAMA,1.000,0.875,0.566
502102,AK,01,ALASKA*,1.500,1.065,0.551
603102,AZ,00,ARIZONA,1.000,0.969,0.856
707102,AR,13,ARKANSAS,1.000,0.859,0.515
801112,CA,54,BAKERSFIELD,1.019,1.096,0.609
901112,CA,55,CHICO,1.017,1.096,0.536