No office rate
20950 monitors tissue pressure. 27600 describes release of the anterior and/or lateral leg compartments.
On this page
CMS RVU26D · Effective 2026-10-01
20950 Pressure monitoring Medicare reimbursement rates in California
Reports monitoring of interstitial fluid pressure, commonly used to assess suspected compartment syndrome in an injured or swollen extremity. Compare 20950 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 20950 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
$297.58–$380.91
29 of 29 localities have a supported rate.
Lowest: Chico
Highest: San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
A spread of $83.33 per service.
Facility setting
$84.16–$100.11
29 of 29 localities have a supported rate.
Lowest: Chico
Highest: San Jose-Sunnyvale-Santa Clara (San Benito Cnty)
A spread of $15.95 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 20950 pays more and less in California
29 payment localities
$297.58 to $380.91
Diagnostic procedure
About 20950: Interstitial pressure monitoring
Reports monitoring of interstitial fluid pressure, commonly used to assess suspected compartment syndrome in an injured or swollen extremity.
This service measures pressure within tissue, such as muscle or subcutaneous tissue, using a pressure-monitoring method. It is commonly performed when acute swelling or injury raises concern for compartment syndrome, including after a fracture or crush injury. An orthopedic or trauma clinician may use the readings to assess pressure in the involved compartment and guide care in an emergency department, hospital, or procedural setting.
Report the service when the record identifies the clinical concern, monitored site or compartment, pressure findings, and the clinician’s interpretation or use of those findings. The 0-day global period includes same-day preoperative and 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. An assistant-at-surgery claim is paid only with documentation of medical necessity; co-surgeons and team surgery are not permitted.
CMS billing rules for 20950
- 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 RVU1.23 · 15%
- Practice expense (office) RVU6.88 · 83%
- Malpractice RVU0.22 · 3%
133
Medicare services in 2024 · #4648 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.
20950 compared with similar codes
Office rates for California, from the same CMS release.
No office rate
20950 monitors tissue pressure. 27601 describes release of posterior leg compartment(s).
No office rate
20950 reports pressure monitoring; 27602 reports release of anterior and/or lateral and posterior leg compartments.
$442.85–$546.10
20950 monitors interstitial pressure. 28008 describes fasciotomy of the foot and/or toe.
Compare 20950 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 $298.20 | Facility $84.78 |
| Chico | Office $297.58 | Facility $84.16 |
| El Centro | Office $297.62 | Facility $84.19 |
| Fresno | Office $297.58 | Facility $84.16 |
| Hanford-Corcoran | Office $297.58 | Facility $84.16 |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | Office $319.50 | Facility $89.14 |
| Madera | Office $297.58 | Facility $84.16 |
| Merced | Office $297.58 | Facility $84.16 |
| Modesto | Office $297.58 | Facility $84.16 |
| Napa | Office $350.28 | Facility $93.63 |
| Oxnard-Thousand Oaks-Ventura | Office $318.43 | Facility $88.27 |
| Redding | Office $297.58 | Facility $84.16 |
| Rest Of California | Office $297.58 | Facility $84.16 |
| Riverside-San Bernardino-Ontario | Office $299.95 | Facility $86.53 |
| Sacramento-Roseville-Folsom | Office $313.76 | Facility $87.29 |
| Salinas | Office $312.63 | Facility $86.94 |
| San Diego-Chula Vista-Carlsbad | Office $321.14 | Facility $88.24 |
| San Francisco-Oakland-Berkeley (Marin Cnty) | Office $372.37 | Facility $97.81 |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | Office $372.12 | Facility $97.56 |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | Office $380.91 | Facility $100.11 |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | Office $379.89 | Facility $99.09 |
| San Luis Obispo-Paso Robles | Office $307.46 | Facility $85.67 |
| Santa Cruz-Watsonville | Office $325.09 | Facility $88.50 |
| Santa Maria-Santa Barbara | Office $314.12 | Facility $87.06 |
| Santa Rosa-Petaluma | Office $328.45 | Facility $89.32 |
| Stockton | Office $297.58 | Facility $84.16 |
| Vallejo | Office $349.92 | Facility $93.27 |
| Visalia | Office $297.58 | Facility $84.16 |
| Yuba City | Office $297.58 | Facility $84.16 |
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20950 billing questions
When is pressure monitoring reported instead of a fasciotomy code?
Report 20950 for monitoring tissue pressure; fasciotomy codes describe surgical release of a compartment. If both services occur, the record should distinguish the pressure assessment from the operative release.
What documentation supports 20950?
Document the clinical concern, the tissue site or compartment monitored, the pressure findings, and how the clinician used or interpreted them.
Can modifier 50 be used for monitoring both sides?
No. CMS identifies bilateral adjustment as inappropriate for this code.
How does the multiple-procedure rule affect payment?
For procedures performed in the same session, the highest-valued procedure is paid in full and other procedures are paid at 50%.
What care is included in the 0-day global period?
Same-day preoperative and postoperative care is included.
Can an assistant or co-surgeon be reported?
An assistant at surgery is paid only when medical necessity is documented. Co-surgeons and team surgery are 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.
1,81720937,,Sp bone agrft morsel add-on,A,,2.72,0.90,NA,0.90,,0.79,4.41,4.41,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81820938,,Sp bone agrft struct add-on,A,,2.94,0.99,NA,0.99,,0.96,4.89,4.89,0,ZZZ,0.00,0.00,0.00,0,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,81920939,,Bone marrow aspir bone grfg,A,,1.13,0.37,NA,0.37,,0.34,1.84,1.84,0,ZZZ,0.00,0.00,0.00,0,1,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,82020950,,Mntr intrstitial fluid press,A,,1.23,6.88,,1.05,,0.22,8.33,2.50,0,000,0.00,0.00,0.00,2,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,82120955,,Fibula bone graft microvasc,A,,39.25,21.35,NA,21.35,,7.30,67.90,67.90,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,82220956,,Iliac bone graft microvasc,A,,40.15,21.79,NA,21.79,,8.58,70.52,70.52,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,82320957,,Mt bone graft microvasc,A,,41.54,23.14,NA,23.14,,8.86,73.54,73.54,0,090,0.10,0.69,0.21,2,0,2,1,0,9,,33.4009,09,0,99,0.00,0.00,0.00