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Billing code 33736: Heart chamber revisionMedicare rate & RVUs

Code 33736 reports operative revision of a heart chamber when the surgeon’s documented work matches this procedure rather than another cardiac repair.

CMS RVU26DEffective Oct 1, 2026109 payment localities

Medicare pays $1,343.38 for 33736 nationally in a facility.

Medicare rate · 33736

Heart chamber revision

Swap in your local Medicare rate.

Work RVUs
23.71
Total RVUs
40.22
Global days
090

National rate · 2026

$1,343.38

Facility setting, before claim adjustments.

See every locality for 33736 → · Billed by an NP, PA or therapist? →

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

On this page 10 sections
  1. Medicare rate
  2. What 33736 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 33736 covers

Code 33736 represents a surgeon’s operative revision of a heart chamber. It belongs to a group of cardiac procedures that also includes repairs of congenital defects and abnormal venous connections. The operative report should identify the chamber revised and describe the work performed; the CMS short description alone cannot distinguish 33736 from the neighboring chamber-revision code, 33735.

Select 33736 from the full procedure description and operative details, rather than from the shared abbreviated label. Medicare assigns it a 90-day surgical global period, which includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are paid at 50%. Modifier 50 is inappropriate for this service. An assistant surgeon may be paid; co-surgeons require supporting documentation. Medicare does not permit team surgery for 33736.

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 33736 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

33736 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$1,212.73
Alaska*Unavailable$1,672.53
ArizonaUnavailable$1,303.72
ArkansasUnavailable$1,196.92
AtlantaUnavailable$1,391.53
AustinUnavailable$1,342.60
BakersfieldUnavailable$1,314.10
Baltimore/Surr. CntysUnavailable$1,429.07
BeaumontUnavailable$1,297.55
BrazoriaUnavailable$1,302.61

33736 rates by state

Office rate range in each state. Select a state to see its payment localities.

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
33736 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 33736 rate is calculated

Each of 33736’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 · 33736

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 23.71Practice expense 10.53Malpractice 5.98

40.2200 adjusted RVUs×$33.4009 conversion factor=$1,343.38

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 33736

33736 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 33736

Heart chamber revision

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.09/0.84/0.07Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 33736

Heart chamber revision

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

33736 without 51 · national facility

$1,343.38

Heart chamber revision

33736-51 · Second procedure: 50%

$671.69

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

33736 compared with similar codes

Compare codes

33736 vs 33735 vs 33720 vs 33726: national Medicare rates

Swap in your local Medicare rate.

  • 33736
    Heart chamber revision · 23.71 wRVU
    —
  • 33735
    Heart chamber revision · 21.65 wRVU
    —
  • 33720
    Heart defect repair · 26.58 wRVU
    —
  • 33726
    Pulmonary vein repair · 36.19 wRVU
    —

How to choose

33735Heart chamber revision
CMS labels both codes as heart-chamber revisions. Use the full procedure descriptions and the surgeon’s operative details to determine which code matches; the CMS short descriptions cannot resolve the choice.
33720Heart defect repair
33720 describes repair of a heart defect. Choose 33736 when the documented operation is the chamber revision represented by 33736, rather than a defect repair.
33726Pulmonary vein repair
33726 concerns repair of pulmonary venous stenosis. It should not be selected merely because a chamber revision occurs near the pulmonary venous connection.

Codes related to 33736

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 33736
CodeHow it relatesNational office range
Same family
33735Heart chamber revisionAnother heart-chamber revision code; the shared CMS short description cannot establish the distinction.No office rate
Used instead
33720Heart defect repairFor a heart-defect repair when that operation, rather than chamber revision, addresses the condition.No office rate
33741Atrial septostomyA transcatheter congenital cardiac procedure when catheter-based treatment replaces operative chamber revision.No office rate

33736 billing questions

How is 33736 distinguished from 33735?

Both have the same CMS short description. Compare the full procedure descriptions with the operative report; the abbreviated labels alone do not establish which chamber-revision code fits.

What operative documentation supports 33736?

The report should identify the heart chamber involved and explain the revision performed, allowing selection of 33736 rather than a code for venous or other defect repair.

Is postoperative care separately reported?

The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

Can modifier 50 be used for 33736?

No. Medicare’s bilateral adjustment does not apply to this heart-chamber procedure, so modifier 50 is inappropriate.

How does Medicare handle additional procedures or surgeons?

In the same session, the highest-valued procedure is paid in full and other procedures at 50%. An assistant surgeon may be paid; co-surgeons need supporting documentation, and team surgery is not permitted.

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.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Show the CMS file lines behind this rate
RVUs for 33736PPRRVU2026_Oct_nonQPP.csv, line 4,047 (RVU26D)

Open CMS sourceHow we calculate rates

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