CPT code 96370: Subcutaneous infusion, each additional hour2026 Medicare rate & RVUs in Marin County, CA
Report an additional hour when a therapeutic, prophylactic, or diagnostic medication continues by subcutaneous infusion beyond the initial service.
In Marin County, CA, Medicare pays $21.81 for 96370 in the office.
Check a contract rate as a % of Medicare · 96370 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 96370 covers
This add-on represents additional time for a medication delivered by continuous subcutaneous infusion, typically through an infusion pump and subcutaneous site. It is used in office or outpatient care when the infusion continues beyond the initial hour represented by 96369. Clinical staff commonly perform the infusion under physician supervision as an incident-to service.
Report it with 96369, the primary subcutaneous infusion service, only when documented infusion time extends more than 30 minutes beyond the initial hour. Record the medication, subcutaneous route, start and stop times, total infusion duration, and relevant pump or site details. CMS treats 96370 as an add-on paid within the primary procedure's global period. It is billed only when performed under physician supervision; it is not a separate professional or technical component.
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 Marin County, CA compares for 96370
Across 109 of 109 payment localities, the office rate for 96370 runs from $15.37 in Arkansas to $22.27 in San Benito County, CA. Marin County, CA pays $21.81. The RVUs are the same everywhere; the geographic indexes change the dollars.
- Marin County, CA · this page$21.81
- Bakersfield, CA · California$18.04−$3.77
- Chico, CA · California$18.01−$3.80
- El Centro, CA · California$18.01−$3.80
- Fresno, CA · California$18.01−$3.80
- Hanford, CA · California$18.01−$3.80
- Los Angeles, CA · California$19.12−$2.69
Other areas in California first, then benchmark localities. Bars start at $0.
Every other payment area
| Payment locality | Office | Facility |
|---|---|---|
| Madera, CACalifornia | $18.01 | — |
| Merced, CACalifornia | $18.01 | — |
| Modesto, CACalifornia | $18.01 | — |
| Napa, CACalifornia | $20.65 | — |
| Oxnard, CACalifornia | $19.02 | — |
| Redding, CACalifornia | $18.01 | — |
| Rest of CaliforniaCalifornia | $18.01 | — |
| Riverside, CACalifornia | $18.12 | — |
| Sacramento, CACalifornia | $18.84 | — |
| Salinas, CACalifornia | $18.77 | — |
| San Diego, CACalifornia | $19.16 | — |
| San Francisco, CACalifornia | $21.80 | — |
| San Benito County, CACalifornia | $22.27 | — |
| Santa Clara County, CACalifornia | $22.22 | — |
| San Luis Obispo, CACalifornia | $18.47 | — |
| Santa Cruz, CACalifornia | $19.30 | — |
| Santa Maria, CACalifornia | $18.82 | — |
| Santa Rosa, CACalifornia | $19.50 | — |
| Stockton, CACalifornia | $18.01 | — |
| Vallejo, CACalifornia | $20.63 | — |
| Visalia, CACalifornia | $18.01 | — |
| Yuba City, CACalifornia | $18.01 | — |
| Washington, DC areaDistrict of Columbia | $19.30 | — |
| Miami, FLFlorida | $17.98 | — |
| Chicago, ILIllinois | $17.56 | — |
| Manhattan, NYNew York | $19.35 | — |
| AlaskaAlaska | $20.59 | — |
| AlabamaAlabama | $15.55 | — |
| ArkansasArkansas | $15.37 | — |
| ArizonaArizona | $16.66 | — |
| ColoradoColorado | $17.72 | — |
| ConnecticutConnecticut | $18.05 | — |
| DelawareDelaware | $16.90 | — |
| Fort Lauderdale, FLFlorida | $17.44 | — |
| Rest of FloridaFlorida | $16.73 | — |
| Atlanta, GAGeorgia | $17.29 | — |
| Rest of GeorgiaGeorgia | $15.94 | — |
| Hawaii, Guam, HIHawaii | $18.36 | — |
| IowaIowa | $15.92 | — |
| IdahoIdaho | $16.00 | — |
| East St. Louis, ILIllinois | $16.52 | — |
| Rest of IllinoisIllinois | $16.29 | — |
| Suburban Chicago, ILIllinois | $17.62 | — |
| IndianaIndiana | $16.08 | — |
| KansasKansas | $15.84 | — |
| KentuckyKentucky | $15.82 | — |
| New Orleans, LALouisiana | $16.45 | — |
| Rest of LouisianaLouisiana | $15.79 | — |
| Metropolitan Boston, MAMassachusetts | $19.32 | — |
| Rest of MassachusettsMassachusetts | $17.63 | — |
| Baltimore area, MDMaryland | $17.99 | — |
| Rest of MarylandMaryland | $17.20 | — |
| Rest of MaineMaine | $16.05 | — |
| Southern Maine, MEMaine | $16.82 | — |
| Detroit, MIMichigan | $16.89 | — |
| Rest of MichiganMichigan | $16.15 | — |
| MinnesotaMinnesota | $17.11 | — |
| Metropolitan Kansas City, MOMissouri | $16.37 | — |
| Metropolitan St. Louis, MOMissouri | $16.52 | — |
| Rest of MissouriMissouri | $15.55 | — |
| MississippiMississippi | $15.46 | — |
| MontanaMontana | $17.03 | — |
| North CarolinaNorth Carolina | $16.20 | — |
| North DakotaNorth Dakota | $16.84 | — |
| NebraskaNebraska | $16.00 | — |
| New HampshireNew Hampshire | $17.43 | — |
| Northern New JerseyNew Jersey | $19.15 | — |
| Rest of New JerseyNew Jersey | $18.29 | — |
| New MexicoNew Mexico | $16.21 | — |
| NevadaNevada | $16.99 | — |
| NYC suburbs and Long Island, NYNew York | $19.73 | — |
| Poughkeepsie and northern NYC suburbs, NYNew York | $18.39 | — |
| Queens, NYNew York | $19.51 | — |
| Rest of New YorkNew York | $16.40 | — |
| OhioOhio | $16.11 | — |
| OklahomaOklahoma | $15.82 | — |
| Portland, OROregon | $18.23 | — |
| Rest of OregonOregon | $16.89 | — |
| Metropolitan Philadelphia, PAPennsylvania | $17.65 | — |
| Rest of PennsylvaniaPennsylvania | $16.14 | — |
| Puerto RicoPuerto Rico | $17.15 | — |
| Rhode IslandRhode Island | $17.47 | — |
| South CarolinaSouth Carolina | $16.17 | — |
| South DakotaSouth Dakota | $16.81 | — |
| TennesseeTennessee | $15.91 | — |
| Austin, TXTexas | $17.63 | — |
| Beaumont, TXTexas | $16.05 | — |
| Brazoria, TXTexas | $16.91 | — |
| Dallas, TXTexas | $17.00 | — |
| Fort Worth, TXTexas | $16.90 | — |
| Galveston, TXTexas | $16.95 | — |
| Houston, TXTexas | $17.13 | — |
| Rest of TexasTexas | $16.46 | — |
| UtahUtah | $16.36 | — |
| VirginiaVirginia | $16.75 | — |
| Virgin Islands, VIUnited States Virgin Islands | $17.15 | — |
| VermontVermont | $16.76 | — |
| Rest of WashingtonWashington | $17.60 | — |
| King County, WAWashington | $19.70 | — |
| WisconsinWisconsin | $16.35 | — |
| West VirginiaWest Virginia | $15.78 | — |
| WyomingWyoming | $16.95 | — |
96370 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.
$15.37
$20.59
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 | $20.59 | 1 |
| AL | $15.55 | 1 |
| AR | $15.37 | 1 |
| AZ | $16.66 | 1 |
| CA | $18.01–$22.27 | 29 |
| CO | $17.72 | 1 |
| CT | $18.05 | 1 |
| DC | $19.30 | 1 |
| DE | $16.90 | 1 |
| FL | $16.73–$17.98 | 3 |
| GA | $15.94–$17.29 | 2 |
| GU | $18.36 | 1 |
| HI | $18.36 | 1 |
| IA | $15.92 | 1 |
| ID | $16.00 | 1 |
| IL | $16.29–$17.62 | 4 |
| IN | $16.08 | 1 |
| KS | $15.84 | 1 |
| KY | $15.82 | 1 |
| LA | $15.79–$16.45 | 2 |
| MA | $17.63–$19.32 | 2 |
| MD | $17.20–$19.30 | 3 |
| ME | $16.05–$16.82 | 2 |
| MI | $16.15–$16.89 | 2 |
| MN | $17.11 | 1 |
| MO | $15.55–$16.52 | 3 |
| MS | $15.46 | 1 |
| MT | $17.03 | 1 |
| NC | $16.20 | 1 |
| ND | $16.84 | 1 |
| NE | $16.00 | 1 |
| NH | $17.43 | 1 |
| NJ | $18.29–$19.15 | 2 |
| NM | $16.21 | 1 |
| NV | $16.99 | 1 |
| NY | $16.40–$19.73 | 5 |
| OH | $16.11 | 1 |
| OK | $15.82 | 1 |
| OR | $16.89–$18.23 | 2 |
| PA | $16.14–$17.65 | 2 |
| PR | $17.15 | 1 |
| RI | $17.47 | 1 |
| SC | $16.17 | 1 |
| SD | $16.81 | 1 |
| TN | $15.91 | 1 |
| TX | $16.05–$17.63 | 8 |
| UT | $16.36 | 1 |
| VA | $16.75–$19.30 | 2 |
| VI | $17.15 | 1 |
| VT | $16.76 | 1 |
| WA | $17.60–$19.70 | 2 |
| WI | $16.35 | 1 |
| WV | $15.78 | 1 |
| WY | $16.95 | 1 |
How the 96370 rate is calculated
Each of 96370’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 · 96370
RVUs × geographic indexes × conversion factor
Work0.18
0.18 RVUs× 1.000 GPCI
Practice expense0.32
0.32 RVUs× 1.000 GPCI
Malpractice0.01
0.01 RVUs× 1.000 GPCI
Adjusted RVUs
0.5100
Conversion factor
$33.4009
Medicare rate
$17.03
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
The exact Marin County, CA inputs and CMS source lines
PPRRVU2026_Oct_nonQPP.csv
12,784
- Code
- 96370
- Physician work
- 0.18
- Practice expense
- 0.32
- Malpractice
- 0.01
GPCI2026.csv
25
- Locality
- Marin County, CA
- Physician work
- 1.095
- Practice expense
- 1.410
- Malpractice
- 0.459
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.18 | × 1.095 | 0.1971 |
| Practice expense | 0.32 | × 1.410 | 0.4512 |
| Malpractice | 0.01 | × 0.459 | 0.0046 |
| Total RVUs | 0.6529 | ||
| Conversion factor | × 33.4009 | ||
Office rate, Marin County, CA$21.81
Office: (0.18 × 1.095 + 0.32 × 1.41 + 0.01 × 0.459) × $33.4009 = $21.81
Payment rules and modifiers for 96370
The CMS indicators that decide how 96370 is paid alongside other services.
CMS payment indicators · 96370
Subcutaneous infusion, each additional hour
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| 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 | 5 | Incident-to service. |
How 96370 has changed in Marin County, CA
96370 · Office / nonfacility
$21.81
Effective 2026-10-01
The base rate is $1.55 higher than on 2025-10-01, moving from $20.26 to $21.81 (7.7%).
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
$20.26changed to$21.81
- Conversion factor 32.3465 changed to 33.4009
- Practice expense RVU 0.30 changed to 0.32
- Work GPCI 1.088 changed to 1.095
- Practice expense GPCI 1.419 changed to 1.410
- Malpractice GPCI 0.470 changed to 0.459
Held through RVU26B, RVU26C, RVU26D.
January 1, 2025
RVU25A
$20.37changed to$20.26
- Conversion factor 33.2875 changed to 32.3465
- Practice expense RVU 0.29 changed to 0.30
Held through RVU25B, RVU25C, RVU25D.
March 9, 2024
RVU24AR
$20.04changed to$20.37
- Conversion factor 32.7442 changed to 33.2875
Held through RVU24B, RVU24C, RVU24D.
January 1, 2024
RVU24A
$19.34changed to$20.04
- Conversion factor 33.8872 changed to 32.7442
- Practice expense RVU 0.27 changed to 0.29
- Work GPCI 1.082 changed to 1.088
- Practice expense GPCI 1.374 changed to 1.419
- Malpractice GPCI 0.487 changed to 0.470
January 1, 2023
RVU23A
$18.84changed to$19.34
- Conversion factor 34.6062 changed to 33.8872
- Practice expense RVU 0.26 changed to 0.27
- Work GPCI 1.077 changed to 1.082
- Practice expense GPCI 1.329 changed to 1.374
- Malpractice GPCI 0.504 changed to 0.487
Held through RVU23B, RVU23C, RVU23D.
January 1, 2022
RVU22A
$18.34changed to$18.84
- Conversion factor 34.8931 changed to 34.6062
- Practice expense RVU 0.25 changed to 0.26
- Work GPCI 1.071 changed to 1.077
- Practice expense GPCI 1.311 changed to 1.329
Held through RVU22B, RVU22C, RVU22D.
January 1, 2021
RVU21A
$18.36changed to$18.34
- Conversion factor 36.0896 changed to 34.8931
- Practice expense RVU 0.24 changed to 0.25
- Work GPCI 1.068 changed to 1.071
- Practice expense GPCI 1.299 changed to 1.311
- Malpractice GPCI 0.481 changed to 0.504
Held through RVU21B, RVU21C, RVU21D.
January 1, 2020
RVU20A
$18.71changed to$18.36
- Conversion factor 36.0391 changed to 36.0896
- Practice expense RVU 0.25 changed to 0.24
- Work GPCI 1.065 changed to 1.068
- Practice expense GPCI 1.291 changed to 1.299
- Malpractice GPCI 0.458 changed to 0.481
Held through RVU20B, RVU20C, RVU20D.
January 1, 2019
RVU19A
$18.56changed to$18.71
- Conversion factor 35.9996 changed to 36.0391
- Work GPCI 1.062 changed to 1.065
- Practice expense GPCI 1.279 changed to 1.291
Held through RVU19B, RVU19C, RVU19D.
January 1, 2018
RVU18AR1
$17.95changed to$18.56
- Conversion factor 35.8887 changed to 35.9996
- Practice expense RVU 0.24 changed to 0.25
- Work GPCI 1.058 changed to 1.062
- Practice expense GPCI 1.271 changed to 1.279
- Malpractice GPCI 0.477 changed to 0.458
Held through RVU18B, RVU18C, RVU18D.
January 1, 2017
RVU17A
No ratechanged to$17.95
Held through RVU17B, RVU17C, RVU17D.
January 1, 2013
RVU13AR
Earliest loaded release: No rate
Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | $21.81 | Not available in this setting | RVU26D |
| 2026-07-01 | $21.81 | Not available in this setting | RVU26C |
| 2026-04-01 | $21.81 | Not available in this setting | RVU26B |
| 2026-01-01 | $21.81 | Not available in this setting | RVU26A |
| 2025-10-01 | $20.26 | Not available in this setting | RVU25D |
| 2025-07-01 | $20.26 | Not available in this setting | RVU25C |
| 2025-04-01 | $20.26 | Not available in this setting | RVU25B |
| 2025-01-01 | $20.26 | Not available in this setting | RVU25A |
| 2024-10-01 | $20.37 | Not available in this setting | RVU24D |
| 2024-07-01 | $20.37 | Not available in this setting | RVU24C |
| 2024-04-01 | $20.37 | Not available in this setting | RVU24B |
| 2024-03-09 | $20.37 | Not available in this setting | RVU24AR |
| 2024-01-01 | $20.04 | Not available in this setting | RVU24A |
| 2023-10-01 | $19.34 | Not available in this setting | RVU23D |
| 2023-07-01 | $19.34 | Not available in this setting | RVU23C |
| 2023-04-01 | $19.34 | Not available in this setting | RVU23B |
| 2023-01-01 | $19.34 | Not available in this setting | RVU23A |
| 2022-10-01 | $18.84 | Not available in this setting | RVU22D |
| 2022-07-01 | $18.84 | Not available in this setting | RVU22C |
| 2022-04-01 | $18.84 | Not available in this setting | RVU22B |
| 2022-01-01 | $18.84 | Not available in this setting | RVU22A |
| 2021-10-01 | $18.34 | Not available in this setting | RVU21D |
| 2021-07-01 | $18.34 | Not available in this setting | RVU21C |
| 2021-04-01 | $18.34 | Not available in this setting | RVU21B |
| 2021-01-01 | $18.34 | Not available in this setting | RVU21A |
| 2020-10-01 | $18.36 | Not available in this setting | RVU20D |
| 2020-07-01 | $18.36 | Not available in this setting | RVU20C |
| 2020-04-01 | $18.36 | Not available in this setting | RVU20B |
| 2020-01-01 | $18.36 | Not available in this setting | RVU20A |
| 2019-10-01 | $18.71 | Not available in this setting | RVU19D |
| 2019-07-01 | $18.71 | Not available in this setting | RVU19C |
| 2019-04-01 | $18.71 | Not available in this setting | RVU19B |
| 2019-01-01 | $18.71 | Not available in this setting | RVU19A |
| 2018-10-01 | $18.56 | Not available in this setting | RVU18D |
| 2018-07-01 | $18.56 | Not available in this setting | RVU18C |
| 2018-04-01 | $18.56 | Not available in this setting | RVU18B |
| 2018-01-01 | $18.56 | Not available in this setting | RVU18AR1 |
| 2017-10-01 | $17.95 | Not available in this setting | RVU17D |
| 2017-07-01 | $17.95 | Not available in this setting | RVU17C |
| 2017-04-01 | $17.95 | Not available in this setting | RVU17B |
| 2017-01-01 | $17.95 | Not available in this setting | RVU17A |
| 2016-10-01 | Rate data unavailable | Not available in this setting | RVU16D |
| 2016-07-01 | Rate data unavailable | Not available in this setting | RVU16C |
| 2016-04-01 | Rate data unavailable | Not available in this setting | RVU16B |
| 2016-01-01 | Rate data unavailable | Not available in this setting | RVU16A |
| 2015-10-01 | Rate data unavailable | Not available in this setting | RVU15D |
| 2015-07-01 | Rate data unavailable | Not available in this setting | RVU15C |
| 2015-04-01 | Rate data unavailable | Not available in this setting | RVU15B |
| 2015-01-01 | Rate data unavailable | Not available in this setting | RVU15A |
| 2014-10-01 | Rate data unavailable | Not available in this setting | RVU14D |
| 2014-07-01 | Rate data unavailable | Not available in this setting | RVU14C |
| 2014-04-01 | Rate data unavailable | Not available in this setting | RVU14B |
| 2014-01-01 | Rate data unavailable | Not available in this setting | RVU14A |
| 2013-10-01 | Rate data unavailable | Not available in this setting | RVU13D |
| 2013-07-01 | Rate data unavailable | Not available in this setting | RVU13C |
| 2013-04-01 | Rate data unavailable | Not available in this setting | RVU13B |
| 2013-01-01 | Rate data unavailable | Not available in this setting | RVU13AR |
Where the Marin County, CA rate applies
Marin County, CA is a Medicare payment area, not a city. Our Census mapping connects it to 31 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.
- Alto
- Belvedere
- Black Point-Green Point
- Bolinas
- Corte Madera
- Dillon Beach
- Fairfax
- Inverness
96370 billing questions
Can 96370 be billed without 96369?
No. It is an add-on for additional subcutaneous infusion time and must be reported with the primary infusion service, 96369.
When does the additional hour qualify?
The documented infusion must extend more than 30 minutes beyond the initial hour. Record actual start and stop times to support the additional time.
How is 96370 different from 96371?
96370 represents additional infusion time. 96371 is for additional pump setup or subcutaneous infusion site work, rather than another hour of infusion.
Is 96370 appropriate for a subcutaneous injection?
No. It represents continuing subcutaneous infusion time. A therapeutic, prophylactic, or diagnostic subcutaneous injection is represented by 96372 when that service is performed.
What supervision is required?
CMS identifies this as an incident-to service, so it is billed only when performed under physician supervision.
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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