CPT code 77772: HDR brachytherapy, more than 12 channels2026 Medicare rate & RVUs in Montana
Reports complex high-dose-rate brachytherapy delivered through interstitial or intracavitary applicators when treatment uses more than 12 channels.
In Montana, Medicare pays $914.82 for 77772 in the office.
Check a contract rate as a % of Medicare · 77772 nationwide
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 11 sections
What 77772 covers
A radiation oncologist uses a remotely afterloaded radioactive source with catheters or an intracavitary applicator to deliver high-dose-rate treatment to a defined target. Common settings include hospital radiation oncology departments and outpatient cancer centers; treatment sites can include the cervix or prostate. This level is distinguished by treatment involving more than 12 channels. Basic dosimetry is included when performed.
Select this code when the documented channel count supports the complex level, rather than the lower channel-count levels. Records should identify the treatment site, applicator or catheter arrangement, channel count, and delivered treatment. CMS lists separately priced professional and technical components: modifier 26 identifies the professional interpretation, while modifier TC identifies equipment and staff; without either modifier, the code represents 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.
How Montana compares for 77772
Across 109 of 109 payment localities, the office rate for 77772 runs from $806.19 in Arkansas to $1,248.97 in San Benito County, CA. Montana pays $914.82. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Montana · this page$914.82
- Los Angeles, CA · California$1,050.51+$135.69
- Washington, DC area · District of Columbia$1,055.02+$140.20
- Miami, FL · Florida$964.53+$49.71
- Chicago, IL · Illinois$936.58+$21.76
- Manhattan, NY · New York$1,051.33+$136.51
- Alaska · Alaska$1,044.19+$129.37
Other areas in Montana first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| AlabamaAlabama | $818.47 | — |
| ArkansasArkansas | $806.19 | — |
| ArizonaArizona | $890.48 | — |
| Bakersfield, CACalifornia | $982.78 | — |
| Chico, CACalifornia | $981.48 | — |
| El Centro, CACalifornia | $981.54 | — |
| Fresno, CACalifornia | $981.48 | — |
| Hanford, CACalifornia | $981.48 | — |
| Madera, CACalifornia | $981.48 | — |
| Merced, CACalifornia | $981.48 | — |
| Modesto, CACalifornia | $981.48 | — |
| Napa, CACalifornia | $1,150.34 | — |
| Oxnard, CACalifornia | $1,046.96 | — |
| Redding, CACalifornia | $981.48 | — |
| Rest of CaliforniaCalifornia | $981.48 | — |
| Riverside, CACalifornia | $985.78 | — |
| Sacramento, CACalifornia | $1,033.45 | — |
| Salinas, CACalifornia | $1,029.67 | — |
| San Diego, CACalifornia | $1,056.42 | — |
| Marin County, CACalifornia | $1,222.10 | — |
| San Francisco, CACalifornia | $1,221.66 | — |
| San Benito County, CACalifornia | $1,248.97 | — |
| Santa Clara County, CACalifornia | $1,247.16 | — |
| San Luis Obispo, CACalifornia | $1,012.69 | — |
| Santa Cruz, CACalifornia | $1,068.55 | — |
| Santa Maria, CACalifornia | $1,034.22 | — |
| Santa Rosa, CACalifornia | $1,079.57 | — |
| Stockton, CACalifornia | $981.48 | — |
| Vallejo, CACalifornia | $1,149.70 | — |
| Visalia, CACalifornia | $981.48 | — |
| Yuba City, CACalifornia | $981.48 | — |
| ColoradoColorado | $960.56 | — |
| ConnecticutConnecticut | $976.99 | — |
| DelawareDelaware | $905.71 | — |
| Fort Lauderdale, FLFlorida | $934.81 | — |
| Rest of FloridaFlorida | $889.47 | — |
| Atlanta, GAGeorgia | $929.61 | — |
| Rest of GeorgiaGeorgia | $838.97 | — |
| Hawaii, Guam, HIHawaii | $1,008.80 | — |
| IowaIowa | $845.30 | — |
| IdahoIdaho | $849.92 | — |
| East St. Louis, ILIllinois | $870.00 | — |
| Rest of IllinoisIllinois | $859.04 | — |
| Suburban Chicago, ILIllinois | $945.74 | — |
| IndianaIndiana | $855.17 | — |
| KansasKansas | $838.71 | — |
| KentuckyKentucky | $833.18 | — |
| New Orleans, LALouisiana | $873.80 | — |
| Rest of LouisianaLouisiana | $830.84 | — |
| Metropolitan Boston, MAMassachusetts | $1,061.44 | — |
| Rest of MassachusettsMassachusetts | $953.49 | — |
| Baltimore area, MDMaryland | $973.74 | — |
| Rest of MarylandMaryland | $924.25 | — |
| Rest of MaineMaine | $851.86 | — |
| Southern Maine, MEMaine | $903.51 | — |
| Detroit, MIMichigan | $898.38 | — |
| Rest of MichiganMichigan | $853.39 | — |
| MinnesotaMinnesota | $926.73 | — |
| Metropolitan Kansas City, MOMissouri | $870.28 | — |
| Metropolitan St. Louis, MOMissouri | $880.04 | — |
| Rest of MissouriMissouri | $814.35 | — |
| MississippiMississippi | $810.56 | — |
| North CarolinaNorth Carolina | $861.52 | — |
| North DakotaNorth Dakota | $907.11 | — |
| NebraskaNebraska | $850.86 | — |
| New HampshireNew Hampshire | $942.98 | — |
| Northern New JerseyNew Jersey | $1,042.95 | — |
| Rest of New JerseyNew Jersey | $989.93 | — |
| New MexicoNew Mexico | $857.23 | — |
| NevadaNevada | $913.40 | — |
| NYC suburbs and Long Island, NYNew York | $1,074.46 | — |
| Poughkeepsie and northern NYC suburbs, NYNew York | $994.46 | — |
| Queens, NYNew York | $1,063.97 | — |
| Rest of New YorkNew York | $874.69 | — |
| OhioOhio | $851.81 | — |
| OklahomaOklahoma | $834.29 | — |
| Portland, OROregon | $994.90 | — |
| Rest of OregonOregon | $908.08 | — |
| Metropolitan Philadelphia, PAPennsylvania | $950.29 | — |
| Rest of PennsylvaniaPennsylvania | $854.62 | — |
| Puerto RicoPuerto Rico | $922.64 | — |
| Rhode IslandRhode Island | $940.74 | — |
| South CarolinaSouth Carolina | $857.74 | — |
| South DakotaSouth Dakota | $906.20 | — |
| TennesseeTennessee | $842.77 | — |
| Austin, TXTexas | $955.81 | — |
| Beaumont, TXTexas | $848.60 | — |
| Brazoria, TXTexas | $906.86 | — |
| Dallas, TXTexas | $911.68 | — |
| Fort Worth, TXTexas | $904.59 | — |
| Galveston, TXTexas | $908.94 | — |
| Houston, TXTexas | $916.08 | — |
| Rest of TexasTexas | $876.57 | — |
| UtahUtah | $869.97 | — |
| VirginiaVirginia | $898.68 | — |
| Virgin Islands, VIUnited States Virgin Islands | $922.64 | — |
| VermontVermont | $901.16 | — |
| Rest of WashingtonWashington | $952.49 | — |
| King County, WAWashington | $1,086.02 | — |
| WisconsinWisconsin | $875.35 | — |
| West VirginiaWest Virginia | $825.39 | — |
| WyomingWyoming | $911.46 | — |
77772 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.
$806.19
$1,115.23
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 | $1,044.19 | 1 |
| AL | $818.47 | 1 |
| AR | $806.19 | 1 |
| AZ | $890.48 | 1 |
| CA | $981.48–$1,248.97 | 29 |
| CO | $960.56 | 1 |
| CT | $976.99 | 1 |
| DC | $1,055.02 | 1 |
| DE | $905.71 | 1 |
| FL | $889.47–$964.53 | 3 |
| GA | $838.97–$929.61 | 2 |
| GU | $1,008.80 | 1 |
| HI | $1,008.80 | 1 |
| IA | $845.30 | 1 |
| ID | $849.92 | 1 |
| IL | $859.04–$945.74 | 4 |
| IN | $855.17 | 1 |
| KS | $838.71 | 1 |
| KY | $833.18 | 1 |
| LA | $830.84–$873.80 | 2 |
| MA | $953.49–$1,061.44 | 2 |
| MD | $924.25–$1,055.02 | 3 |
| ME | $851.86–$903.51 | 2 |
| MI | $853.39–$898.38 | 2 |
| MN | $926.73 | 1 |
| MO | $814.35–$880.04 | 3 |
| MS | $810.56 | 1 |
| MT | $914.82 | 1 |
| NC | $861.52 | 1 |
| ND | $907.11 | 1 |
| NE | $850.86 | 1 |
| NH | $942.98 | 1 |
| NJ | $989.93–$1,042.95 | 2 |
| NM | $857.23 | 1 |
| NV | $913.40 | 1 |
| NY | $874.69–$1,074.46 | 5 |
| OH | $851.81 | 1 |
| OK | $834.29 | 1 |
| OR | $908.08–$994.90 | 2 |
| PA | $854.62–$950.29 | 2 |
| PR | $922.64 | 1 |
| RI | $940.74 | 1 |
| SC | $857.74 | 1 |
| SD | $906.20 | 1 |
| TN | $842.77 | 1 |
| TX | $848.60–$955.81 | 8 |
| UT | $869.97 | 1 |
| VA | $898.68–$1,055.02 | 2 |
| VI | $922.64 | 1 |
| VT | $901.16 | 1 |
| WA | $952.49–$1,086.02 | 2 |
| WI | $875.35 | 1 |
| WV | $825.39 | 1 |
| WY | $911.46 | 1 |
How the 77772 rate is calculated
Each of 77772’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 · 77772
RVUs × geographic indexes × conversion factor
Work5.27
5.27 RVUs× 1.000 GPCI
Practice expense21.73
21.73 RVUs× 1.000 GPCI
Malpractice0.39
0.39 RVUs× 1.000 GPCI
Adjusted RVUs
27.3900
Conversion factor
$33.4009
Medicare rate
$914.85
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Montana inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
9,166
- Code
- 77772
- Physician work
- 5.27
- Practice expense
- 21.73
- Malpractice
- 0.39
GPCI2026.csv
71
- Locality
- Montana
- Physician work
- 1.000
- Practice expense
- 1.000
- Malpractice
- 0.998
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 5.27 | × 1.000 | 5.2700 |
| Practice expense | 21.73 | × 1.000 | 21.7300 |
| Malpractice | 0.39 | × 0.998 | 0.3892 |
| Total RVUs | 27.3892 | ||
| Conversion factor | × 33.4009 | ||
Office rate, Montana$914.82
Office: (5.27 × 1 + 21.73 × 1 + 0.39 × 0.998) × $33.4009 = $914.82
Payment rules and modifiers for 77772
The CMS indicators that decide how 77772 is paid alongside other services.
CMS payment indicators · 77772
HDR brachytherapy, more than 12 channels
| 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
77772 without 26 · national office
$914.85
HDR brachytherapy, more than 12 channels
77772-26 · Professional component
$280.90
Pays only the interpretation and report.
How 77772 has changed in Montana
77772 · Office / nonfacility
$914.82
Effective 2026-10-01
The base rate is $27.19 higher than on 2025-10-01, moving from $887.63 to $914.82 (3.1%).
It is unchanged from the immediately preceding available release, effective 2026-07-01.
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
January 1, 2026
RVU26A
$887.63changed to$914.82
- Conversion factor 32.3465 changed to 33.4009
- Work RVU 5.40 changed to 5.27
- Practice expense RVU 21.66 changed to 21.73
- Malpractice GPCI 0.978 changed to 0.998
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$902.79changed to$887.63
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 21.32 changed to 21.66
- Malpractice RVU 0.41 changed to 0.39
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$888.05changed to$902.79
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$906.19changed to$888.05
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 20.96 changed to 21.32
- Malpractice RVU 0.39 changed to 0.41
January 1, 2023
RVU23A
$899.84changed to$906.19
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 20.27 changed to 20.96
- Malpractice RVU 0.34 changed to 0.39
- Malpractice GPCI 0.977 changed to 0.978
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$921.25changed to$899.84
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 20.66 changed to 20.27
- Malpractice RVU 0.35 changed to 0.34
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$925.96changed to$921.25
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 19.84 changed to 20.66
- Malpractice RVU 0.32 changed to 0.35
- Malpractice GPCI 1.304 changed to 0.977
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$940.65changed to$925.96
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 20.13 changed to 19.84
- Malpractice RVU 0.35 changed to 0.32
- Malpractice GPCI 1.631 changed to 1.304
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$956.54changed to$940.65
- Conversion factor 35.9996 changed to 36.0391
- Practice expense RVU 20.60 changed to 20.13
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$934.91changed to$956.54
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 20.15 changed to 20.60
- Malpractice GPCI 1.429 changed to 1.631
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
$925.15changed to$934.91
- Conversion factor 35.8043 changed to 35.8887
- Practice expense RVU 20.01 changed to 20.15
- Malpractice GPCI 1.226 changed to 1.429
Held through RVU17B, RVU17C, RVU17D.
January 1, 2016
RVU16A
No ratechanged to$925.15
Held through RVU16B, RVU16C, RVU16D.
January 1, 2013
RVU13AR
Earliest loaded release: No rate
Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $914.82 | Not available in this setting | RVU26D |
| 2026-07-01 | $914.82 | Not available in this setting | RVU26C |
| 2026-04-01 | $914.82 | Not available in this setting | RVU26B |
| 2026-01-01 | $914.82 | Not available in this setting | RVU26A |
| 2025-10-01 | $887.63 | Not available in this setting | RVU25D |
| 2025-07-01 | $887.63 | Not available in this setting | RVU25C |
| 2025-04-01 | $887.63 | Not available in this setting | RVU25B |
| 2025-01-01 | $887.63 | Not available in this setting | RVU25A |
| 2024-10-01 | $902.79 | Not available in this setting | RVU24D |
| 2024-07-01 | $902.79 | Not available in this setting | RVU24C |
| 2024-04-01 | $902.79 | Not available in this setting | RVU24B |
| 2024-03-09 | $902.79 | Not available in this setting | RVU24AR |
| 2024-01-01 | $888.05 | Not available in this setting | RVU24A |
| 2023-10-01 | $906.19 | Not available in this setting | RVU23D |
| 2023-07-01 | $906.19 | Not available in this setting | RVU23C |
| 2023-04-01 | $906.19 | Not available in this setting | RVU23B |
| 2023-01-01 | $906.19 | Not available in this setting | RVU23A |
| 2022-10-01 | $899.84 | Not available in this setting | RVU22D |
| 2022-07-01 | $899.84 | Not available in this setting | RVU22C |
| 2022-04-01 | $899.84 | Not available in this setting | RVU22B |
| 2022-01-01 | $899.84 | Not available in this setting | RVU22A |
| 2021-10-01 | $921.25 | Not available in this setting | RVU21D |
| 2021-07-01 | $921.25 | Not available in this setting | RVU21C |
| 2021-04-01 | $921.25 | Not available in this setting | RVU21B |
| 2021-01-01 | $921.25 | Not available in this setting | RVU21A |
| 2020-10-01 | $925.96 | Not available in this setting | RVU20D |
| 2020-07-01 | $925.96 | Not available in this setting | RVU20C |
| 2020-04-01 | $925.96 | Not available in this setting | RVU20B |
| 2020-01-01 | $925.96 | Not available in this setting | RVU20A |
| 2019-10-01 | $940.65 | Not available in this setting | RVU19D |
| 2019-07-01 | $940.65 | Not available in this setting | RVU19C |
| 2019-04-01 | $940.65 | Not available in this setting | RVU19B |
| 2019-01-01 | $940.65 | Not available in this setting | RVU19A |
| 2018-10-01 | $956.54 | Not available in this setting | RVU18D |
| 2018-07-01 | $956.54 | Not available in this setting | RVU18C |
| 2018-04-01 | $956.54 | Not available in this setting | RVU18B |
| 2018-01-01 | $956.54 | Not available in this setting | RVU18AR1 |
| 2017-10-01 | $934.91 | Not available in this setting | RVU17D |
| 2017-07-01 | $934.91 | Not available in this setting | RVU17C |
| 2017-04-01 | $934.91 | Not available in this setting | RVU17B |
| 2017-01-01 | $934.91 | Not available in this setting | RVU17A |
| 2016-10-01 | $925.15 | Not available in this setting | RVU16D |
| 2016-07-01 | $925.15 | Not available in this setting | RVU16C |
| 2016-04-01 | $925.15 | Not available in this setting | RVU16B |
| 2016-01-01 | $925.15 | Not available in this setting | RVU16A |
| 2015-10-01 | Not in this release | Not in this release | RVU15D |
| 2015-07-01 | Not in this release | Not in this release | RVU15C |
| 2015-04-01 | Not in this release | Not in this release | RVU15B |
| 2015-01-01 | Not in this release | Not in this release | RVU15A |
| 2014-10-01 | Not in this release | Not in this release | RVU14D |
| 2014-07-01 | Not in this release | Not in this release | RVU14C |
| 2014-04-01 | Not in this release | Not in this release | RVU14B |
| 2014-01-01 | Not in this release | Not in this release | RVU14A |
| 2013-10-01 | Not in this release | Not in this release | RVU13D |
| 2013-07-01 | Not in this release | Not in this release | RVU13C |
| 2013-04-01 | Not in this release | Not in this release | RVU13B |
| 2013-01-01 | Not in this release | Not in this release | RVU13AR |
Where the Montana rate applies
Montana is a Medicare payment area, not a city. Our Census mapping connects it to 497 cities and communities in Montana. Some span more than one payment area; confirm with the service ZIP.
- Absarokee
- Acton
- Alberton
- Alder
- Alzada
- Amsterdam
- Anaconda-Deer Lodge County
- Antelope
77772 billing questions
How is this code distinguished from 77770 and 77771?
The channel count determines the level: 77772 is for treatment involving more than 12 channels. The lower codes cover fewer channels.
Can basic dosimetry be billed separately?
Basic dosimetry is included when performed as part of this service. The code covers complex HDR interstitial or intracavitary treatment, not a separate dosimetry-only service.
When should modifier 26 or TC be used?
CMS identifies modifier 26 for the professional interpretation and TC for the technical equipment and staff component. Report the code without either modifier for the global service.
What documentation supports the complex level?
Document the treatment site, applicator or catheter configuration, channel count, and treatment delivered. The record should support use of more than 12 channels.
Is this the right code for HDR treatment of a skin surface site?
No. This code is for interstitial or intracavitary treatment; HDR skin-surface treatment is represented by a different code family, including 77767 and 77768.
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
Fee sheets · Coming soon
Put 77772 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Join the waitlist