No office rate
93580 is used for transcatheter closure of an atrial septal defect; 93583 reduces hypertrophied septal heart muscle.
On this page
CMS RVU26D · Effective 2026-10-01
93583 in Delaware
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$631.37
Base rate per service
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.
Cardiac catheterization
About 93583: Percutaneous septal reduction therapy
Reports catheter-directed septal reduction, typically alcohol ablation for obstructive hypertrophic cardiomyopathy, performed in a cardiac catheterization setting.
An interventional cardiologist uses a catheter to deliver alcohol into a selected septal coronary branch, creating a controlled injury in the thickened heart muscle to reduce obstruction to blood flow. The procedure is typically performed in a hospital catheterization laboratory for a patient with obstructive hypertrophic cardiomyopathy. Temporary pacemaker insertion and selective coronary angiography, when performed as part of the treatment, are included in this service.
Report the code for the transcatheter septal-reduction treatment, not for closure of a congenital septal defect. The procedure report should support the indication, target branch, and treatment performed. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. 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 50% multiple-procedure reduction. Assistant-at-surgery payment requires documented medical necessity; co-surgeon and team-surgery payment are not permitted.
CMS billing rules for 93583
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is 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 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 RVU13.41 · 70%
- Practice expense (office) RVU2.58 · 13%
- Malpractice RVU3.20 · 17%
359
Medicare services in 2024 · #3829 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.
93583 compared with similar codes
Office rates for Delaware, from the same CMS release.
No office rate
93581 addresses transcatheter closure of a ventricular septal defect, not catheter-directed treatment of obstructive myocardial thickening.
No office rate
33416 describes surgical septal myectomy. Choose it for the surgical approach rather than catheter-directed septal reduction reported with 93583.
The same code, a different location
How does Delaware compare?
93583 across payment areas
Same release and payment basis · bars start at $0
Delaware · This locality
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Other payment areas listed in Delaware appear first, followed by selected cross-country examples. The chart compares amounts, not distance.
The code’s RVUs stay the same in these comparisons. Geographic adjustments to work, practice expense and malpractice change the dollar amount. A city name alone may not identify the payment area for a service address.
Compare all 108 other payment areas
Alabama
Alabama · 93583
Office
Unavailable
Facility
$583.80
No comparable office rate is available.
Arkansas
Arkansas · 93583
Office
Unavailable
Facility
$576.97
No comparable office rate is available.
Arizona
Arizona · 93583
Office
Unavailable
Facility
$622.90
No comparable office rate is available.
Bakersfield
California · 93583
Office
Unavailable
Facility
$615.96
No comparable office rate is available.
Chico
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
El Centro
California · 93583
Office
Unavailable
Facility
$607.79
No comparable office rate is available.
Fresno
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Hanford-Corcoran
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Madera
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Merced
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Modesto
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Napa
California · 93583
Office
Unavailable
Facility
$644.00
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 93583
Office
Unavailable
Facility
$628.89
No comparable office rate is available.
Redding
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Rest Of California
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 93583
Office
Unavailable
Facility
$641.59
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 93583
Office
Unavailable
Facility
$621.54
No comparable office rate is available.
Salinas
California · 93583
Office
Unavailable
Facility
$618.96
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 93583
Office
Unavailable
Facility
$622.34
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 93583
Office
Unavailable
Facility
$661.02
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 93583
Office
Unavailable
Facility
$657.39
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 93583
Office
Unavailable
Facility
$678.73
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 93583
Office
Unavailable
Facility
$663.87
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 93583
Office
Unavailable
Facility
$610.96
No comparable office rate is available.
Santa Cruz-Watsonville
California · 93583
Office
Unavailable
Facility
$619.30
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 93583
Office
Unavailable
Facility
$618.22
No comparable office rate is available.
Santa Rosa-Petaluma
California · 93583
Office
Unavailable
Facility
$624.45
No comparable office rate is available.
Stockton
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Vallejo
California · 93583
Office
Unavailable
Facility
$638.76
No comparable office rate is available.
Visalia
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Yuba City
California · 93583
Office
Unavailable
Facility
$607.26
No comparable office rate is available.
Colorado
Colorado · 93583
Office
Unavailable
Facility
$628.45
No comparable office rate is available.
Connecticut
Connecticut · 93583
Office
Unavailable
Facility
$679.00
No comparable office rate is available.
Fort Lauderdale
Florida · 93583
Office
Unavailable
Facility
$728.44
No comparable office rate is available.
Rest Of Florida
Florida · 93583
Office
Unavailable
Facility
$690.93
No comparable office rate is available.
Atlanta
Georgia · 93583
Office
Unavailable
Facility
$665.17
No comparable office rate is available.
Rest Of Georgia
Georgia · 93583
Office
Unavailable
Facility
$652.18
No comparable office rate is available.
Hawaii, Guam
Hawaii · 93583
Office
Unavailable
Facility
$607.77
No comparable office rate is available.
Iowa
Iowa · 93583
Office
Unavailable
Facility
$569.19
No comparable office rate is available.
Idaho
Idaho · 93583
Office
Unavailable
Facility
$577.74
No comparable office rate is available.
East St. Louis
Illinois · 93583
Office
Unavailable
Facility
$742.45
No comparable office rate is available.
Rest Of Illinois
Illinois · 93583
Office
Unavailable
Facility
$693.64
No comparable office rate is available.
Suburban Chicago
Illinois · 93583
Office
Unavailable
Facility
$728.94
No comparable office rate is available.
Indiana
Indiana · 93583
Office
Unavailable
Facility
$579.73
No comparable office rate is available.
Kansas
Kansas · 93583
Office
Unavailable
Facility
$579.68
No comparable office rate is available.
Kentucky
Kentucky · 93583
Office
Unavailable
Facility
$622.31
No comparable office rate is available.
New Orleans
Louisiana · 93583
Office
Unavailable
Facility
$650.42
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 93583
Office
Unavailable
Facility
$626.56
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 93583
Office
Unavailable
Facility
$664.29
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 93583
Office
Unavailable
Facility
$631.00
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 93583
Office
Unavailable
Facility
$679.75
No comparable office rate is available.
Rest Of Maryland
Maryland · 93583
Office
Unavailable
Facility
$637.71
No comparable office rate is available.
Rest Of Maine
Maine · 93583
Office
Unavailable
Facility
$593.67
No comparable office rate is available.
Southern Maine
Maine · 93583
Office
Unavailable
Facility
$600.75
No comparable office rate is available.
Detroit
Michigan · 93583
Office
Unavailable
Facility
$711.27
No comparable office rate is available.
Rest Of Michigan
Michigan · 93583
Office
Unavailable
Facility
$647.25
No comparable office rate is available.
Minnesota
Minnesota · 93583
Office
Unavailable
Facility
$568.22
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 93583
Office
Unavailable
Facility
$633.25
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 93583
Office
Unavailable
Facility
$637.04
No comparable office rate is available.
Rest Of Missouri
Missouri · 93583
Office
Unavailable
Facility
$626.29
No comparable office rate is available.
Mississippi
Mississippi · 93583
Office
Unavailable
Facility
$601.09
No comparable office rate is available.
Montana**
Montana · 93583
Office
Unavailable
Facility
$640.75
No comparable office rate is available.
North Carolina
North Carolina · 93583
Office
Unavailable
Facility
$596.60
No comparable office rate is available.
North Dakota**
North Dakota · 93583
Office
Unavailable
Facility
$577.47
No comparable office rate is available.
Nebraska
Nebraska · 93583
Office
Unavailable
Facility
$567.85
No comparable office rate is available.
New Hampshire
New Hampshire · 93583
Office
Unavailable
Facility
$631.14
No comparable office rate is available.
Northern Nj
New Jersey · 93583
Office
Unavailable
Facility
$690.24
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 93583
Office
Unavailable
Facility
$677.18
No comparable office rate is available.
New Mexico
New Mexico · 93583
Office
Unavailable
Facility
$655.29
No comparable office rate is available.
Nevada**
Nevada · 93583
Office
Unavailable
Facility
$623.20
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 93583
Office
Unavailable
Facility
$777.51
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 93583
Office
Unavailable
Facility
$691.75
No comparable office rate is available.
Queens
New York · 93583
Office
Unavailable
Facility
$732.56
No comparable office rate is available.
Rest Of New York
New York · 93583
Office
Unavailable
Facility
$604.91
No comparable office rate is available.
Ohio
Ohio · 93583
Office
Unavailable
Facility
$634.32
No comparable office rate is available.
Oklahoma
Oklahoma · 93583
Office
Unavailable
Facility
$607.91
No comparable office rate is available.
Portland
Oregon · 93583
Office
Unavailable
Facility
$630.33
No comparable office rate is available.
Rest Of Oregon
Oregon · 93583
Office
Unavailable
Facility
$608.87
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 93583
Office
Unavailable
Facility
$673.19
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 93583
Office
Unavailable
Facility
$628.02
No comparable office rate is available.
Puerto Rico
Puerto Rico · 93583
Office
Unavailable
Facility
$640.31
No comparable office rate is available.
Rhode Island
Rhode Island · 93583
Office
Unavailable
Facility
$640.77
No comparable office rate is available.
South Carolina
South Carolina · 93583
Office
Unavailable
Facility
$618.38
No comparable office rate is available.
South Dakota**
South Dakota · 93583
Office
Unavailable
Facility
$569.99
No comparable office rate is available.
Tennessee
Tennessee · 93583
Office
Unavailable
Facility
$583.63
No comparable office rate is available.
Austin
Texas · 93583
Office
Unavailable
Facility
$634.67
No comparable office rate is available.
Beaumont
Texas · 93583
Office
Unavailable
Facility
$625.62
No comparable office rate is available.
Brazoria
Texas · 93583
Office
Unavailable
Facility
$620.26
No comparable office rate is available.
Dallas
Texas · 93583
Office
Unavailable
Facility
$629.47
No comparable office rate is available.
Fort Worth
Texas · 93583
Office
Unavailable
Facility
$630.00
No comparable office rate is available.
Galveston
Texas · 93583
Office
Unavailable
Facility
$625.56
No comparable office rate is available.
Houston
Texas · 93583
Office
Unavailable
Facility
$684.13
No comparable office rate is available.
Rest Of Texas
Texas · 93583
Office
Unavailable
Facility
$626.20
No comparable office rate is available.
Utah
Utah · 93583
Office
Unavailable
Facility
$624.89
No comparable office rate is available.
Virginia
Virginia · 93583
Office
Unavailable
Facility
$608.07
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 93583
Office
Unavailable
Facility
$640.31
No comparable office rate is available.
Vermont
Vermont · 93583
Office
Unavailable
Facility
$587.30
No comparable office rate is available.
Rest Of Washington
Washington · 93583
Office
Unavailable
Facility
$625.81
No comparable office rate is available.
Seattle (King Cnty)
Washington · 93583
Office
Unavailable
Facility
$663.36
No comparable office rate is available.
Wisconsin
Wisconsin · 93583
Office
Unavailable
Facility
$563.38
No comparable office rate is available.
West Virginia
West Virginia · 93583
Office
Unavailable
Facility
$675.74
No comparable office rate is available.
Wyoming**
Wyoming · 93583
Office
Unavailable
Facility
$613.17
No comparable office rate is available.
See how rates vary across the country
93583 · Office / nonfacility · Non-QP. Choose a state to explore its payment localities. A range means the amount varies within that state.
Explore a state
Local rates. Clear comparisons.
Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.
View all state and territory rates as a table
| State / territory | Rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
Where does this rate apply?
Delaware is a Medicare payment area. Our Census mapping connects it to 79 cities and communities in Delaware, including the examples shown here.
Some communities span more than one payment area. Follow a city link to compare all of its mapped areas, or check the service-location ZIP above for an address-level starting point.
Use this rate
What is a percentage of Medicare worth?
Turn a percentage into dollars for 93583 in Delaware. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$694.51
$631.37 × 110% = $694.51
A contract may specify another Medicare year or additional adjustments. This is percentage arithmetic on the displayed base rate, not a claim adjudication.
Working with a whole code list?
Compare an offer across your annual code mix, including an older Medicare schedule or flat per-code rates.
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 93583 in Delaware.
PPRRVU2026_Oct_nonQPP.csv
12,152
- Code
- 93583
- Physician work
- 13.41
- Practice expense
- 2.58
- Malpractice
- 3.20
GPCI2026.csv
40
- Locality
- Delaware
- Physician work
- 1.005
- Practice expense
- 0.988
- Malpractice
- 0.899
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 13.41 | × 1.005 | 13.4770 |
| Practice expense | 2.58 | × 0.988 | 2.5490 |
| Malpractice | 3.20 | × 0.899 | 2.8768 |
| Total RVUs | 18.9029 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, Delaware$631.37
Open 93583 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 13.41 | 1.005 |
| Practice expense | 2.58 | 0.988 |
| Malpractice | 3.2 | 0.899 |
(13.41 × 1.005 + 2.58 × 0.988 + 3.2 × 0.899) × $33.4009 = $631.37
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.
How this rate has changed
93583 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.
What changed, release by release
Explore release dates and calculate this code in an earlier period →
Each row uses the accepted CMS release effective on that date and the same contractor and locality identifiers. Missing rates stay visible. Historical boundaries may differ; verify the service address for an older claim.
Inspect every release and its CMS source
| Effective from | Office / nonfacility | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Not available in this setting | $631.37 | RVU26D |
| 2026-07-01 | Not available in this setting | $631.37 | RVU26C |
| 2026-04-01 | Not available in this setting | $631.37 | RVU26B |
| 2026-01-01 | Not available in this setting | $631.37 | RVU26A |
| 2025-10-01 | Not available in this setting | $699.86 | RVU25D |
| 2025-07-01 | Not available in this setting | $699.86 | RVU25C |
| 2025-04-01 | Not available in this setting | $699.86 | RVU25B |
| 2025-01-01 | Not available in this setting | $699.86 | RVU25A |
93583 billing questions
When should 93583 be selected instead of a septal defect closure code?
Use 93583 for catheter-directed reduction of hypertrophied heart muscle, typically in obstructive hypertrophic cardiomyopathy. Codes such as 93580 and 93581 describe closure of an atrial or ventricular septal defect.
Can selective coronary angiography be reported separately?
Selective coronary angiography performed as part of the septal-reduction treatment is included in 93583. The code also includes temporary pacemaker insertion when performed.
What supports reporting 93583?
The record should identify the clinical indication and document the catheter-based septal-reduction treatment, including the target branch and intervention performed.
How does the 0-day global period affect same-day care?
Same-day preoperative and postoperative care is included in the procedure's payment. The 0-day global period does not extend routine global care beyond the procedure date.
How are other procedures in the same session paid?
CMS pays the highest-valued procedure in full and applies the standard multiple-procedure reduction to other procedures performed in that session.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment requires documentation of medical necessity. CMS does not permit co-surgeon or team-surgery payment for this service.
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.
12,14993580,,Transcath closure of asd,A,,17.52,3.69,NA,3.69,,4.06,25.27,25.27,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,15093581,,Transcath closure of vsd,A,,23.78,4.82,NA,4.82,,5.70,34.30,34.30,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,15193582,,Perq transcath closure pda,A,,12.00,2.24,NA,2.24,,2.87,17.11,17.11,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,15293583,,Perq transcath septal reduxn,A,,13.41,2.58,NA,2.58,,3.20,19.19,19.19,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,15393584,,Vngrph chd anom/persist svc,A,,1.17,0.22,NA,0.22,,0.07,1.46,1.46,0,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,15493585,,Vngrph chd azygs/hemiazygs,A,,1.10,0.21,NA,0.21,,0.07,1.38,1.38,0,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
12,15593586,,Vngrph chd coronary sinus,A,,1.39,0.31,NA,0.31,,0.08,1.78,1.78,0,ZZZ,0.00,0.00,0.00,0,0,0,0,0,9,,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