Billing code 70390: Salivary duct imagingMedicare rate & RVUs
Contrast radiography maps a salivary duct system when clinicians investigate suspected duct obstruction, narrowing, or recurrent gland swelling.
Medicare pays $110.56 for 70390 nationally in the office. Local office rates run $96.37–$154.41.
Medicare rate · 70390
Salivary duct imaging
Swap in your local Medicare rate.
- Work RVUs
- 0.37
- Total RVUs
- 3.31
- Global days
- XXX
National rate · 2026
$110.56
Office setting, before claim adjustments.
See every locality for 70390 → · 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
What 70390 covers
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.
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 70390 pays more and less
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
109 payment localities
$96.37 to $154.41
109 of 109 payment localities
| Payment locality | Office | Facility |
|---|---|---|
| Alabama | $97.97 | Unavailable |
| Alaska* | $122.60 | Unavailable |
| Arizona | $107.40 | Unavailable |
| Arkansas | $96.37 | Unavailable |
| Atlanta | $112.35 | Unavailable |
| Austin | $116.10 | Unavailable |
| Bakersfield | $119.73 | Unavailable |
| Baltimore/Surr. Cntys | $118.09 | Unavailable |
| Beaumont | $101.74 | Unavailable |
| Brazoria | $109.56 | Unavailable |
| Chicago | $112.43 | Unavailable |
| Chico | $119.63 | Unavailable |
| Colorado | $116.71 | Unavailable |
| Connecticut | $118.50 | Unavailable |
| Dallas | $110.14 | Unavailable |
| Dc + Md/Va Suburbs | $128.64 | Unavailable |
| Delaware | $109.35 | Unavailable |
| Detroit | $107.84 | Unavailable |
| East St. Louis | $103.80 | Unavailable |
| El Centro | $119.64 | Unavailable |
| Fort Lauderdale | $112.63 | Unavailable |
| Fort Worth | $109.18 | Unavailable |
| Fresno | $119.63 | Unavailable |
| Galveston | $109.80 | Unavailable |
| Hanford-Corcoran | $119.63 | Unavailable |
| Hawaii, Guam | $123.45 | Unavailable |
| Houston | $110.35 | Unavailable |
| Idaho | $102.25 | Unavailable |
| Indiana | $102.95 | Unavailable |
| Iowa | $101.69 | Unavailable |
| Kansas | $100.73 | Unavailable |
| Kentucky | $99.68 | Unavailable |
| Los Angeles-Long Beach-Anaheim (Los Angeles/Orange Cnty) | $128.51 | Unavailable |
| Madera | $119.63 | Unavailable |
| Manhattan | $127.68 | Unavailable |
| Merced | $119.63 | Unavailable |
| Metropolitan Boston | $129.81 | Unavailable |
| Metropolitan Kansas City | $104.60 | Unavailable |
| Metropolitan Philadelphia | $114.96 | Unavailable |
| Metropolitan St. Louis | $105.89 | Unavailable |
| Miami | $116.07 | Unavailable |
| Minnesota | $112.67 | Unavailable |
| Mississippi | $96.79 | Unavailable |
| Modesto | $119.63 | Unavailable |
| Montana** | $110.55 | Unavailable |
| Napa | $141.75 | Unavailable |
| Nebraska | $102.45 | Unavailable |
| Nevada** | $110.49 | Unavailable |
| New Hampshire | $114.42 | Unavailable |
| New Mexico | $102.69 | Unavailable |
| New Orleans | $104.96 | Unavailable |
| North Carolina | $103.68 | Unavailable |
| North Dakota** | $109.96 | Unavailable |
| Northern Nj | $126.96 | Unavailable |
| Nyc Suburbs/Long Island | $130.58 | Unavailable |
| Ohio | $102.11 | Unavailable |
| Oklahoma | $99.93 | Unavailable |
| Oxnard-Thousand Oaks-Ventura | $128.22 | Unavailable |
| Portland | $121.29 | Unavailable |
| Poughkpsie/N Nyc Suburbs | $120.56 | Unavailable |
| Puerto Rico | $111.61 | Unavailable |
| Queens | $129.48 | Unavailable |
| Redding | $119.63 | Unavailable |
| Rest Of California | $119.63 | Unavailable |
| Rest Of Florida | $106.78 | Unavailable |
| Rest Of Georgia | $100.25 | Unavailable |
| Rest Of Illinois | $102.67 | Unavailable |
| Rest Of Louisiana | $99.34 | Unavailable |
| Rest Of Maine | $102.40 | Unavailable |
| Rest Of Maryland | $111.76 | Unavailable |
| Rest Of Massachusetts | $115.70 | Unavailable |
| Rest Of Michigan | $102.23 | Unavailable |
| Rest Of Missouri | $97.12 | Unavailable |
| Rest Of New Jersey | $120.09 | Unavailable |
| Rest Of New York | $105.40 | Unavailable |
| Rest Of Oregon | $109.87 | Unavailable |
| Rest Of Pennsylvania | $102.53 | Unavailable |
| Rest Of Texas | $105.50 | Unavailable |
| Rest Of Washington | $115.63 | Unavailable |
| Rhode Island | $113.89 | Unavailable |
| Riverside-San Bernardino-Ontario | $119.96 | Unavailable |
| Sacramento-Roseville-Folsom | $126.38 | Unavailable |
| Salinas | $125.93 | Unavailable |
| San Diego-Chula Vista-Carlsbad | $129.52 | Unavailable |
| San Francisco-Oakland-Berkeley (Marin Cnty) | $151.04 | Unavailable |
| San Francisco-Oakland-Berkeley (San Francisco/San Mateo/Alameda/Contra Costa Cnty) | $151.01 | Unavailable |
| San Jose-Sunnyvale-Santa Clara (San Benito Cnty) | $154.41 | Unavailable |
| San Jose-Sunnyvale-Santa Clara (Santa Clara Cnty) | $154.27 | Unavailable |
| San Luis Obispo-Paso Robles | $123.81 | Unavailable |
| Santa Cruz-Watsonville | $131.25 | Unavailable |
| Santa Maria-Santa Barbara | $126.57 | Unavailable |
| Santa Rosa-Petaluma | $132.62 | Unavailable |
| Seattle (King Cnty) | $133.06 | Unavailable |
| South Carolina | $103.02 | Unavailable |
| South Dakota** | $109.89 | Unavailable |
| Southern Maine | $109.31 | Unavailable |
| Stockton | $119.63 | Unavailable |
| Suburban Chicago | $114.04 | Unavailable |
| Tennessee | $101.25 | Unavailable |
| Utah | $104.62 | Unavailable |
| Vallejo | $141.70 | Unavailable |
| Vermont | $109.09 | Unavailable |
| Virgin Islands | $111.61 | Unavailable |
| Virginia | $108.61 | Unavailable |
| Visalia | $119.63 | Unavailable |
| West Virginia | $98.26 | Unavailable |
| Wisconsin | $105.78 | Unavailable |
| Wyoming** | $110.30 | Unavailable |
| Yuba City | $119.63 | Unavailable |
70390 rates by state
Office rate range in each state. Select a state to see its payment localities.
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.
$96.37
$137.02
Color shows the midpoint of each state’s locality range.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | $122.60 | 1 |
| AL | $97.97 | 1 |
| AR | $96.37 | 1 |
| AZ | $107.40 | 1 |
| CA | $119.63–$154.41 | 29 |
| CO | $116.71 | 1 |
| CT | $118.50 | 1 |
| DC | $128.64 | 1 |
| DE | $109.35 | 1 |
| FL | $106.78–$116.07 | 3 |
| GA | $100.25–$112.35 | 2 |
| GU | $123.45 | 1 |
| HI | $123.45 | 1 |
| IA | $101.69 | 1 |
| ID | $102.25 | 1 |
| IL | $102.67–$114.04 | 4 |
| IN | $102.95 | 1 |
| KS | $100.73 | 1 |
| KY | $99.68 | 1 |
| LA | $99.34–$104.96 | 2 |
| MA | $115.70–$129.81 | 2 |
| MD | $111.76–$128.64 | 3 |
| ME | $102.40–$109.31 | 2 |
| MI | $102.23–$107.84 | 2 |
| MN | $112.67 | 1 |
| MO | $97.12–$105.89 | 3 |
| MS | $96.79 | 1 |
| MT | $110.55 | 1 |
| NC | $103.68 | 1 |
| ND | $109.96 | 1 |
| NE | $102.45 | 1 |
| NH | $114.42 | 1 |
| NJ | $120.09–$126.96 | 2 |
| NM | $102.69 | 1 |
| NV | $110.49 | 1 |
| NY | $105.40–$130.58 | 5 |
| OH | $102.11 | 1 |
| OK | $99.93 | 1 |
| OR | $109.87–$121.29 | 2 |
| PA | $102.53–$114.96 | 2 |
| PR | $111.61 | 1 |
| RI | $113.89 | 1 |
| SC | $103.02 | 1 |
| SD | $109.89 | 1 |
| TN | $101.25 | 1 |
| TX | $101.74–$116.10 | 8 |
| UT | $104.62 | 1 |
| VA | $108.61–$128.64 | 2 |
| VI | $111.61 | 1 |
| VT | $109.09 | 1 |
| WA | $115.63–$133.06 | 2 |
| WI | $105.78 | 1 |
| WV | $98.26 | 1 |
| WY | $110.30 | 1 |
How the 70390 rate is calculated
Each of 70390’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 · 70390
RVUs × geographic indexes × conversion factor
Swap in your local Medicare rate.
Work 0.37Practice expense 2.91Malpractice 0.03
All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.
Payment rules and modifiers for 70390
The CMS indicators that decide how 70390 is paid alongside other services.
CMS payment indicators · 70390
Salivary duct imaging
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
70390 without 26 · national office
$110.56
Salivary duct imaging
70390-26 · Professional component
$17.37
Pays only the interpretation and report.
70390 compared with similar codes
Compare codes
70390 vs 70380 vs 70490 vs 70491: national Medicare rates
Swap in your local Medicare rate.
How to choose
- 70380Salivary gland X-ray
- Choose 70390 for contrast imaging that outlines the ductal system. Choose 70380 for a plain salivary gland X-ray examination for a calculus.
- 70490Neck CT
- 70490 is a noncontrast CT of the soft-tissue neck, providing broader cross-sectional anatomy; 70390 specifically depicts the salivary ducts with introduced contrast.
- 70491CT neck
- 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.
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 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
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