No office rate
Use 33702 for a secundum atrial septal defect. This code is for the primum defect associated with partial atrioventricular septal defect.
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CMS RVU26D · Effective 2026-10-01
33710 Heart defect repair Medicare reimbursement rates in California
Open surgical repair of a primum atrial septal defect, often with associated left atrioventricular valve cleft repair, in a patient with a partial atrioventricular septal defect. Compare 33710 office and facility rates across CMS payment localities in California.
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 33710 in California?
California has 29 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 29 payment areas shown below, using the same CMS release.
Office / nonfacility
No supported rate
Facility setting
$1821.72–$2066.23
29 of 29 localities have a supported rate.
Lowest: Chico
Highest: San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
A spread of $244.51 per service.
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.
Where 33710 pays more and less in California
Congenital cardiac surgery
About 33710: Partial atrioventricular septal defect repair
Open surgical repair of a primum atrial septal defect, often with associated left atrioventricular valve cleft repair, in a patient with a partial atrioventricular septal defect.
This code describes open repair of a primum atrial septal defect, the atrial-level component of a partial atrioventricular septal defect. The operation may include repair of an associated cleft in the left atrioventricular valve. Congenital cardiac surgeons typically perform the procedure in an operating room, using the operative approach and materials documented for the patient’s anatomy and repair.
Report the code when the operative record supports repair of the primum defect; distinguish it from repair of secundum or sinus venosus defects. Documentation should identify the defect type and describe the septal and any associated valve repair. The procedure has a 90-day global period, including the day-before preoperative visit and related postoperative care during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard multiple-procedure reduction. Modifier 50 is inappropriate for this code. Assistant-at-surgery services may be paid; co-surgeons and team surgery are not permitted.
CMS billing rules for 33710
- 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 RVU36.56 · 64%
- Practice expense (office) RVU11.33 · 20%
- Malpractice RVU9.22 · 16%
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.
33710 compared with similar codes
Office rates for California, from the same CMS release.
No office rate
Use 33720 for a sinus venosus defect. The defect location and associated anatomy distinguish it from a primum defect.
No office rate
33724 addresses repair of an anomalous pulmonary venous connection. It is not the code for repair of a primum atrial septal defect.
Compare 33710 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.
29 of 29 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Bakersfield | Office Unavailable | Facility $1846.65 |
| Chico | Office Unavailable | Facility $1821.72 |
| El Centro | Office Unavailable | Facility $1823.26 |
| Fresno | Office Unavailable | Facility $1821.72 |
| Hanford-Corcoran | Office Unavailable | Facility $1821.72 |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | Office Unavailable | Facility $1923.37 |
| Madera | Office Unavailable | Facility $1821.72 |
| Merced | Office Unavailable | Facility $1821.72 |
| Modesto | Office Unavailable | Facility $1821.72 |
| Napa | Office Unavailable | Facility $1953.28 |
| Oxnard-Thousand Oaks-Ventura | Office Unavailable | Facility $1894.49 |
| Redding | Office Unavailable | Facility $1821.72 |
| Rest Of California | Office Unavailable | Facility $1821.72 |
| Riverside-San Bernardino-Ontario | Office Unavailable | Facility $1920.57 |
| Sacramento-Roseville-Folsom | Office Unavailable | Facility $1870.28 |
| Salinas | Office Unavailable | Facility $1862.66 |
| San Diego-Chula Vista-Carlsbad | Office Unavailable | Facility $1877.29 |
| San Francisco-Oakland-Berkeley (Marin Cnty) | Office Unavailable | Facility $2012.09 |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | Office Unavailable | Facility $2001.62 |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | Office Unavailable | Facility $2066.23 |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | Office Unavailable | Facility $2023.42 |
| San Luis Obispo-Paso Robles | Office Unavailable | Facility $1838.00 |
| Santa Cruz-Watsonville | Office Unavailable | Facility $1871.64 |
| Santa Maria-Santa Barbara | Office Unavailable | Facility $1861.65 |
| Santa Rosa-Petaluma | Office Unavailable | Facility $1887.55 |
| Stockton | Office Unavailable | Facility $1821.72 |
| Vallejo | Office Unavailable | Facility $1938.19 |
| Visalia | Office Unavailable | Facility $1821.72 |
| Yuba City | Office Unavailable | Facility $1821.72 |
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33710 billing questions
How is this code distinguished from repair of a secundum atrial septal defect?
This code is for a primum defect, associated with the partial atrioventricular septal defect spectrum. A secundum defect is a different anatomic subtype and is reported with 33702 when its criteria are met.
Does the code include repair of an associated valve cleft?
Repair of an associated left atrioventricular valve cleft may be part of the operation. The operative report should clarify the defect and the work performed; do not infer valve repair from the diagnosis alone.
Can modifier 50 be used for repair on both sides?
No. Modifier 50 is inappropriate for this code because the descriptor or anatomy does not support bilateral adjustment.
What postoperative care is included in the global period?
The 90-day global period includes the day-before preoperative visit and related postoperative care during the 90 days after surgery.
Can an assistant surgeon be reported?
Assistant-at-surgery services may be paid for this procedure. Co-surgeons and team surgery are not permitted under the CMS rules supplied for this code.
How are other procedures from the same session paid?
Under the standard multiple-procedure reduction, the highest-valued procedure is paid in full and other procedures are paid at 50% when performed in the same session.
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.
4,03633697,,Compl rpr tof w/pulm atresia,A,,36.63,11.34,NA,11.34,,9.24,57.21,57.21,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,03733702,,Repair of heart defects,A,,26.56,10.58,NA,10.58,,6.68,43.82,43.82,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,0383370F,,Ajcc brst cncr stage 0 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
4,03933710,,Repair of heart defects,A,,36.56,11.33,NA,11.33,,9.22,57.11,57.11,0,090,0.09,0.84,0.07,2,0,2,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04033720,,Repair of heart defect,A,,26.58,10.59,NA,10.59,,6.69,43.86,43.86,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04133724,,Repair venous anomaly,A,,26.94,9.45,NA,9.45,,6.78,43.17,43.17,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
4,04233726,,Repair pul venous stenosis,A,,36.19,11.27,NA,11.27,,9.14,56.60,56.60,0,090,0.09,0.84,0.07,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00