$33.49
Choose 70390 for contrast imaging that outlines the ductal system. Choose 70380 for a plain salivary gland X-ray examination for a calculus.
On this page
CMS RVU26D · Effective 2026-10-01
70390 Salivary duct imaging Medicare reimbursement rates in Kansas
Contrast radiography maps a salivary duct system when clinicians investigate suspected duct obstruction, narrowing, or recurrent gland swelling. Compare 70390 office and facility rates across CMS payment localities in Kansas.
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 70390 in Kansas?
Kansas has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$100.73
1 of 1 localities have a supported rate.
Payment area: Kansas
One mapped payment locality.
Facility setting
No supported rate
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.
Radiology
About 70390: Salivary duct contrast radiography
Contrast radiography maps a salivary duct system when clinicians investigate suspected duct obstruction, narrowing, or recurrent gland swelling.
Salivary duct contrast imaging, commonly called sialography, outlines the ductal system with X-ray images after contrast is introduced through a duct opening. It may help evaluate suspected blockage, narrowing, or other duct abnormalities in a patient with recurrent salivary gland swelling or related obstructive symptoms. The study is generally performed in a radiology setting, with imaging staff acquiring the images and a radiologist interpreting them.
Report this service when the documented study uses contrast to image the salivary duct system; a plain X-ray evaluation of the gland for a calculus is a different service. The record should identify the clinical indication and support that contrast duct imaging was performed, with an interpretation available for the professional service. Medicare recognizes professional and technical components: report modifier 26 for the interpretation, modifier TC for the equipment and staff, or neither modifier when billing the global service.
CMS billing rules for 70390
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
Where the value comes from
- Work RVU0.37 · 11%
- Practice expense (office) RVU2.91 · 88%
- Malpractice RVU0.03 · 1%
24
Medicare services in 2024 · #5824 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.
70390 compared with similar codes
Office rates for Kansas, from the same CMS release.
$138.21
70490 is a noncontrast CT of the soft-tissue neck, providing broader cross-sectional anatomy; 70390 specifically depicts the salivary ducts with introduced contrast.
$168.89
70491 is a contrast-enhanced soft-tissue neck CT. It is distinct from 70390, which uses contrast introduced through a salivary duct to image that ductal system.
Compare 70390 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.
1 of 1 payment localities
Kansas →
Office / nonfacility
$100.73
Facility
Unavailable
Need rates for a whole code list?
Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.
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 70390 in Kansas.
PPRRVU2026_Oct_nonQPP.csv
7,775
- Code
- 70390
- Physician work
- 0.37
- Practice expense
- 2.91
- Malpractice
- 0.03
GPCI2026.csv
54
- Locality
- Kansas
- Physician work
- 1.000
- Practice expense
- 0.904
- Malpractice
- 0.504
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.37 | × 1.000 | 0.3700 |
| Practice expense | 2.91 | × 0.904 | 2.6306 |
| Malpractice | 0.03 | × 0.504 | 0.0151 |
| Total RVUs | 3.0158 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Kansas$100.73
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.37 | 1 |
| Practice expense | 2.91 | 0.904 |
| Malpractice | 0.03 | 0.504 |
(0.37 × 1 + 2.91 × 0.904 + 0.03 × 0.504) × $33.4009 = $100.73
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.
70390 billing questions
How does this differ from 70380?
70390 represents contrast imaging that outlines the salivary duct system. 70380 is used for a salivary gland X-ray examination for a calculus, rather than duct-focused sialography.
When should modifier 26 or TC be used?
Use modifier 26 for the professional interpretation and modifier TC for the technical service, including equipment and staff. Billing without either modifier represents the global service.
What documentation supports reporting 70390?
Document the clinical reason for evaluating the duct, that contrast duct imaging was performed, and the resulting interpretation. The record should distinguish the study from a plain gland X-ray.
Can this code be reported for a plain salivary gland X-ray?
No. This code is for contrast imaging of the salivary duct system; a plain gland examination for a calculus is represented by 70380.
Is this the same as a neck CT?
No. A neck CT images a broader anatomic region with cross-sectional imaging, while sialography specifically outlines the salivary duct system using contrast introduced through a duct.
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.
7,77270380,,X-ray exam of salivary gland,A,,0.17,0.91,,0.91,NA,0.02,1.10,1.10,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,2.69,2.69,0.04
7,77370380,26,X-ray exam of salivary gland,A,,0.17,0.06,,0.06,,0.01,0.24,0.24,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,77470380,TC,X-ray exam of salivary gland,A,,0.00,0.85,,0.85,NA,0.01,0.86,0.86,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,01,0,99,2.63,2.63,0.03
7,77570390,,X-ray exam of salivary duct,A,,0.37,2.91,,2.91,NA,0.03,3.31,3.31,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,7.40,7.40,0.05
7,77670390,26,X-ray exam of salivary duct,A,,0.37,0.13,,0.13,,0.02,0.52,0.52,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
7,77770390,TC,X-ray exam of salivary duct,A,,0.00,2.78,,2.78,NA,0.01,2.79,2.79,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,03,0,99,7.27,7.27,0.03
7,77870450,,Ct head/brain w/o dye,A,,0.83,2.30,,2.30,NA,0.06,3.19,3.19,1,XXX,0.00,0.00,0.00,4,0,0,0,0,9,,33.4009,09,0,88,3.48,3.48,0.07
5106102,IL,99,REST OF ILLINOIS,1.000,0.913,1.563
5208102,IN,00,INDIANA,1.000,0.927,0.486
5305102,IA,00,IOWA,1.000,0.915,0.397
5405202,KS,00,KANSAS,1.000,0.904,0.504
5515102,KY,00,KENTUCKY,1.000,0.889,0.915
5607202,LA,01,NEW ORLEANS,1.000,0.941,1.136
5707202,LA,99,REST OF LOUISIANA,1.000,0.885,0.958