Both describe trochanteric ulcer excision with muscle or myocutaneous flap coverage. Choose 15958 when an ostectomy is also performed.
On this page
CMS RVU26D · Effective 2026-10-01
15958 in El Centro
Office / nonfacility
Not available in this setting
Base rate per service
Facility setting
$1085.13
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.
Pressure ulcer surgery
About 15958: Trochanteric ulcer excision with ostectomy and muscle flap
Reports excision of a trochanteric pressure ulcer with underlying bone removal and muscle or myocutaneous flap coverage.
This operation treats a pressure ulcer over the greater trochanter by removing the ulcer and performing an ostectomy, then covering the defect with a muscle or myocutaneous flap. Plastic and reconstructive surgeons commonly perform it for deep, complex wounds, including in patients with prolonged immobility or spinal cord injury. It is a facility-based reconstructive procedure rather than simple wound closure or surface debridement.
Choose this code when the operative report supports all three elements: trochanteric ulcer excision, bone removal, and muscle or myocutaneous flap coverage. Document the ulcer site, the ostectomy, and the flap used. The 90-day global includes the day-before preoperative visit and 90 days of related postoperative care. When multiple procedures occur in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Assistant-at-surgery payment is barred; co-surgeons require supporting documentation, and team surgery is not permitted.
CMS billing rules for 15958
- 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
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons paid only with supporting documentation.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU16.33 · 50%
- Practice expense (office) RVU12.90 · 40%
- Malpractice RVU3.22 · 10%
113
Medicare services in 2024 · #4784 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.
15958 compared with similar codes
Office rates for El Centro, from the same CMS release.
Both include trochanteric ulcer excision and ostectomy. The distinguishing coverage is a skin flap for 15953 versus a muscle or myocutaneous flap for 15958.
This is the trochanteric ostectomy option without the muscle or myocutaneous flap combination described by 15958.
This code describes the analogous ostectomy and muscle-flap approach at a sacral pressure ulcer; 15958 is for the trochanteric site.
The same code, a different location
How does El Centro compare?
15958 across payment areas
Same release and payment basis · bars start at $0
El Centro · This locality
Unavailable
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.
No comparable rate is available in this setting.
Unavailable
No comparable rate is available in this setting.
Other payment areas listed in California 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
Merced
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Modesto
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Napa
California · 15958
Office
Unavailable
Facility
$1202.32
No comparable office rate is available.
Oxnard-Thousand Oaks-Ventura
California · 15958
Office
Unavailable
Facility
$1137.00
No comparable office rate is available.
Redding
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Rest Of California
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Riverside-San Bernardino-Ontario
California · 15958
Office
Unavailable
Facility
$1119.23
No comparable office rate is available.
Sacramento-Roseville-Folsom
California · 15958
Office
Unavailable
Facility
$1123.82
No comparable office rate is available.
Salinas
California · 15958
Office
Unavailable
Facility
$1119.37
No comparable office rate is available.
San Diego-Chula Vista-Carlsbad
California · 15958
Office
Unavailable
Facility
$1135.41
No comparable office rate is available.
San Francisco-Oakland-Berkeley (Marin Cnty)
California · 15958
Office
Unavailable
Facility
$1254.15
No comparable office rate is available.
San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty)
California · 15958
Office
Unavailable
Facility
$1250.49
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
California · 15958
Office
Unavailable
Facility
$1284.40
No comparable office rate is available.
San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty)
California · 15958
Office
Unavailable
Facility
$1269.45
No comparable office rate is available.
San Luis Obispo-Paso Robles
California · 15958
Office
Unavailable
Facility
$1103.12
No comparable office rate is available.
Santa Cruz-Watsonville
California · 15958
Office
Unavailable
Facility
$1138.05
No comparable office rate is available.
Santa Maria-Santa Barbara
California · 15958
Office
Unavailable
Facility
$1120.75
No comparable office rate is available.
Santa Rosa-Petaluma
California · 15958
Office
Unavailable
Facility
$1148.56
No comparable office rate is available.
Stockton
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Vallejo
California · 15958
Office
Unavailable
Facility
$1197.05
No comparable office rate is available.
Visalia
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Yuba City
California · 15958
Office
Unavailable
Facility
$1084.59
No comparable office rate is available.
Dc + Md/Va Suburbs
District of Columbia · 15958
Office
Unavailable
Facility
$1202.16
No comparable office rate is available.
Miami
Florida · 15958
Office
Unavailable
Facility
$1265.97
No comparable office rate is available.
Chicago
Illinois · 15958
Office
Unavailable
Facility
$1229.11
No comparable office rate is available.
Manhattan
New York · 15958
Office
Unavailable
Facility
$1251.59
No comparable office rate is available.
Alaska*
Alaska · 15958
Office
Unavailable
Facility
$1336.29
No comparable office rate is available.
Alabama
Alabama · 15958
Office
Unavailable
Facility
$983.32
No comparable office rate is available.
Arkansas
Arkansas · 15958
Office
Unavailable
Facility
$970.94
No comparable office rate is available.
Arizona
Arizona · 15958
Office
Unavailable
Facility
$1055.01
No comparable office rate is available.
Colorado
Colorado · 15958
Office
Unavailable
Facility
$1094.43
No comparable office rate is available.
Connecticut
Connecticut · 15958
Office
Unavailable
Facility
$1150.53
No comparable office rate is available.
Delaware
Delaware · 15958
Office
Unavailable
Facility
$1070.55
No comparable office rate is available.
Fort Lauderdale
Florida · 15958
Office
Unavailable
Facility
$1176.36
No comparable office rate is available.
Rest Of Florida
Florida · 15958
Office
Unavailable
Facility
$1119.00
No comparable office rate is available.
Atlanta
Georgia · 15958
Office
Unavailable
Facility
$1114.01
No comparable office rate is available.
Rest Of Georgia
Georgia · 15958
Office
Unavailable
Facility
$1057.97
No comparable office rate is available.
Hawaii, Guam
Hawaii · 15958
Office
Unavailable
Facility
$1097.61
No comparable office rate is available.
Iowa
Iowa · 15958
Office
Unavailable
Facility
$982.38
No comparable office rate is available.
Idaho
Idaho · 15958
Office
Unavailable
Facility
$992.71
No comparable office rate is available.
East St. Louis
Illinois · 15958
Office
Unavailable
Facility
$1158.45
No comparable office rate is available.
Rest Of Illinois
Illinois · 15958
Office
Unavailable
Facility
$1106.92
No comparable office rate is available.
Suburban Chicago
Illinois · 15958
Office
Unavailable
Facility
$1182.34
No comparable office rate is available.
Indiana
Indiana · 15958
Office
Unavailable
Facility
$997.12
No comparable office rate is available.
Kansas
Kansas · 15958
Office
Unavailable
Facility
$989.15
No comparable office rate is available.
Kentucky
Kentucky · 15958
Office
Unavailable
Facility
$1026.89
No comparable office rate is available.
New Orleans
Louisiana · 15958
Office
Unavailable
Facility
$1073.06
No comparable office rate is available.
Rest Of Louisiana
Louisiana · 15958
Office
Unavailable
Facility
$1029.79
No comparable office rate is available.
Metropolitan Boston
Massachusetts · 15958
Office
Unavailable
Facility
$1177.98
No comparable office rate is available.
Rest Of Massachusetts
Massachusetts · 15958
Office
Unavailable
Facility
$1093.59
No comparable office rate is available.
Baltimore/Surr. Cntys
Maryland · 15958
Office
Unavailable
Facility
$1149.53
No comparable office rate is available.
Rest Of Maryland
Maryland · 15958
Office
Unavailable
Facility
$1085.66
No comparable office rate is available.
Rest Of Maine
Maine · 15958
Office
Unavailable
Facility
$1008.74
No comparable office rate is available.
Southern Maine
Maine · 15958
Office
Unavailable
Facility
$1040.30
No comparable office rate is available.
Detroit
Michigan · 15958
Office
Unavailable
Facility
$1142.56
No comparable office rate is available.
Rest Of Michigan
Michigan · 15958
Office
Unavailable
Facility
$1060.25
No comparable office rate is available.
Minnesota
Minnesota · 15958
Office
Unavailable
Facility
$1020.64
No comparable office rate is available.
Metropolitan Kansas City
Missouri · 15958
Office
Unavailable
Facility
$1055.10
No comparable office rate is available.
Metropolitan St. Louis
Missouri · 15958
Office
Unavailable
Facility
$1063.39
No comparable office rate is available.
Rest Of Missouri
Missouri · 15958
Office
Unavailable
Facility
$1021.60
No comparable office rate is available.
Mississippi
Mississippi · 15958
Office
Unavailable
Facility
$995.90
No comparable office rate is available.
Montana**
Montana · 15958
Office
Unavailable
Facility
$1083.64
No comparable office rate is available.
North Carolina
North Carolina · 15958
Office
Unavailable
Facility
$1016.16
No comparable office rate is available.
North Dakota**
North Dakota · 15958
Office
Unavailable
Facility
$1019.97
No comparable office rate is available.
Nebraska
Nebraska · 15958
Office
Unavailable
Facility
$983.79
No comparable office rate is available.
New Hampshire
New Hampshire · 15958
Office
Unavailable
Facility
$1088.08
No comparable office rate is available.
Northern Nj
New Jersey · 15958
Office
Unavailable
Facility
$1194.47
No comparable office rate is available.
Rest Of New Jersey
New Jersey · 15958
Office
Unavailable
Facility
$1155.75
No comparable office rate is available.
New Mexico
New Mexico · 15958
Office
Unavailable
Facility
$1069.71
No comparable office rate is available.
Nevada**
Nevada · 15958
Office
Unavailable
Facility
$1066.33
No comparable office rate is available.
Nyc Suburbs/Long Island
New York · 15958
Office
Unavailable
Facility
$1292.37
No comparable office rate is available.
Poughkpsie/N Nyc Suburbs
New York · 15958
Office
Unavailable
Facility
$1171.92
No comparable office rate is available.
Queens
New York · 15958
Office
Unavailable
Facility
$1244.72
No comparable office rate is available.
Rest Of New York
New York · 15958
Office
Unavailable
Facility
$1030.37
No comparable office rate is available.
Ohio
Ohio · 15958
Office
Unavailable
Facility
$1047.23
No comparable office rate is available.
Oklahoma
Oklahoma · 15958
Office
Unavailable
Facility
$1013.77
No comparable office rate is available.
Portland
Oregon · 15958
Office
Unavailable
Facility
$1112.88
No comparable office rate is available.
Rest Of Oregon
Oregon · 15958
Office
Unavailable
Facility
$1050.19
No comparable office rate is available.
Metropolitan Philadelphia
Pennsylvania · 15958
Office
Unavailable
Facility
$1132.10
No comparable office rate is available.
Rest Of Pennsylvania
Pennsylvania · 15958
Office
Unavailable
Facility
$1042.61
No comparable office rate is available.
Puerto Rico
Puerto Rico · 15958
Office
Unavailable
Facility
$1086.99
No comparable office rate is available.
Rhode Island
Rhode Island · 15958
Office
Unavailable
Facility
$1096.83
No comparable office rate is available.
South Carolina
South Carolina · 15958
Office
Unavailable
Facility
$1034.98
No comparable office rate is available.
South Dakota**
South Dakota · 15958
Office
Unavailable
Facility
$1012.45
No comparable office rate is available.
Tennessee
Tennessee · 15958
Office
Unavailable
Facility
$994.85
No comparable office rate is available.
Austin
Texas · 15958
Office
Unavailable
Facility
$1097.68
No comparable office rate is available.
Beaumont
Texas · 15958
Office
Unavailable
Facility
$1037.44
No comparable office rate is available.
Brazoria
Texas · 15958
Office
Unavailable
Facility
$1060.68
No comparable office rate is available.
Dallas
Texas · 15958
Office
Unavailable
Facility
$1071.77
No comparable office rate is available.
Fort Worth
Texas · 15958
Office
Unavailable
Facility
$1068.86
No comparable office rate is available.
Galveston
Texas · 15958
Office
Unavailable
Facility
$1066.71
No comparable office rate is available.
Houston
Texas · 15958
Office
Unavailable
Facility
$1125.65
No comparable office rate is available.
Rest Of Texas
Texas · 15958
Office
Unavailable
Facility
$1051.45
No comparable office rate is available.
Utah
Utah · 15958
Office
Unavailable
Facility
$1047.04
No comparable office rate is available.
Virginia
Virginia · 15958
Office
Unavailable
Facility
$1044.91
No comparable office rate is available.
Virgin Islands
United States Virgin Islands · 15958
Office
Unavailable
Facility
$1086.99
No comparable office rate is available.
Vermont
Vermont · 15958
Office
Unavailable
Facility
$1026.42
No comparable office rate is available.
Rest Of Washington
Washington · 15958
Office
Unavailable
Facility
$1088.08
No comparable office rate is available.
Seattle (King Cnty)
Washington · 15958
Office
Unavailable
Facility
$1189.26
No comparable office rate is available.
Wisconsin
Wisconsin · 15958
Office
Unavailable
Facility
$991.34
No comparable office rate is available.
West Virginia
West Virginia · 15958
Office
Unavailable
Facility
$1073.77
No comparable office rate is available.
Wyoming**
Wyoming · 15958
Office
Unavailable
Facility
$1055.90
No comparable office rate is available.
See how rates vary across the country
15958 · 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?
El Centro is a Medicare payment area. Our Census mapping connects it to 18 cities and communities in California, 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 15958 in El Centro. This uses the base rate on this page, so the locality and release stay consistent.
Reference amount per service
$1193.64
$1085.13 × 110% = $1193.64
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 15958 in El Centro.
PPRRVU2026_Oct_nonQPP.csv
1,611
- Code
- 15958
- Physician work
- 16.33
- Practice expense
- 12.90
- Malpractice
- 3.22
GPCI2026.csv
10
- Locality
- El Centro
- Physician work
- 1.017
- Practice expense
- 1.096
- Malpractice
- 0.541
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 16.33 | × 1.017 | 16.6076 |
| Practice expense | 12.90 | × 1.096 | 14.1384 |
| Malpractice | 3.22 | × 0.541 | 1.7420 |
| Total RVUs | 32.4880 | ||
| Conversion factor | × 33.4009 | ||
Facility rate, El Centro$1085.13
Open 15958 in the RVU calculator →
Explore RVUs, geographic factors and the full formula
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 16.33 | 1.017 |
| Practice expense | 12.9 | 1.096 |
| Malpractice | 3.22 | 0.541 |
(16.33 × 1.017 + 12.9 × 1.096 + 3.22 × 0.541) × $33.4009 = $1085.13
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
15958 · 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 | $1085.13 | RVU26D |
| 2026-07-01 | Not available in this setting | $1085.13 | RVU26C |
| 2026-04-01 | Not available in this setting | $1085.13 | RVU26B |
| 2026-01-01 | Not available in this setting | $1085.13 | RVU26A |
| 2025-10-01 | Not available in this setting | $1146.87 | RVU25D |
| 2025-07-01 | Not available in this setting | $1146.87 | RVU25C |
| 2025-04-01 | Not available in this setting | $1146.87 | RVU25B |
| 2025-01-01 | Not available in this setting | $1146.87 | RVU25A |
15958 billing questions
When is 15958 selected instead of 15956?
Use 15958 when the trochanteric ulcer excision includes both an ostectomy and muscle or myocutaneous flap coverage. Code 15956 describes the muscle or myocutaneous flap approach without the ostectomy element.
How does 15958 differ from 15953?
Both include trochanteric ulcer excision and ostectomy, but 15958 uses muscle or myocutaneous flap coverage; 15953 uses a skin flap.
What operative documentation supports 15958?
Document the ulcer's trochanteric location, excision, bone removal, and the muscle or myocutaneous flap used for coverage. The record should make clear that these elements were performed in the same operation.
Can modifier 50 be reported for bilateral trochanteric ulcers?
No. CMS identifies bilateral adjustment as inapplicable to this code, so modifier 50 is inappropriate.
How are additional same-session procedures and postoperative care handled?
The 90-day global includes the day-before preoperative visit and 90 days of related postoperative care. For multiple procedures in one session, the highest-valued procedure is paid in full and others are subject to the standard 50% reduction.
Can an assistant or co-surgeon be reported?
Assistant-at-surgery payment is barred for this code. Co-surgeons are paid only when supporting documentation is provided; 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 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.
