CPT code 59070: Amnioinfusion, transabdominal approach2026 Medicare rate & RVUs in Marin County, CA

Reports ultrasound-guided fluid instillation into the amniotic cavity through the maternal abdomen for selected fetal conditions involving low amniotic fluid.

CMS RVU26DEffective Oct 1, 2026One payment locality

In Marin County, CA, Medicare pays $463.37 for 59070 in the office and $283.00 when it’s performed in a hospital or facility.

$463.37Office (non-facility)
$283.00Hospital or facility
+14.8%vs the national office rate ($403.48)

Check a contract rate as a % of Medicare · 59070 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 59070 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Marin County, CA
  2. What 59070 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 59070 covers

A maternal-fetal medicine physician typically performs this procedure by guiding a needle through the maternal abdominal wall and uterus into the amniotic cavity, then instilling fluid. It may be used in selected fetal conditions involving inadequate amniotic fluid or as part of a planned fetal intervention. Ultrasound guidance is included in the service. The procedure is generally performed in a hospital or other setting equipped for maternal and fetal assessment.

Report the code for the transabdominal infusion, not for fluid removal or diagnostic sampling. Documentation should identify the clinical indication, transabdominal approach, ultrasound-guided access, and infusion performed. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and the others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment may be available; co-surgeon and team-surgery billing are not permitted.

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 59070

Across 109 of 109 payment localities, the office rate for 59070 runs from $351.93 in Arkansas to $494.77 in NYC suburbs and Long Island, NY. Marin County, CA pays $463.37. The RVUs are the same everywhere; the geographic indexes change the dollars.

59070 in Marin County, CA vs other payment areas
  1. Marin County, CA · this page$463.37
  2. Bakersfield, CA · California$402.56−$60.81
  3. Chico, CA · California$398.25−$65.12
  4. El Centro, CA · California$398.52−$64.85
  5. Fresno, CA · California$398.25−$65.12
  6. Hanford, CA · California$398.25−$65.12
  7. Los Angeles, CA · California$424.83−$38.54

Other areas in California first, then benchmark localities. Bars start at $0.

Every other payment area

59070 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$398.25$258.04
Merced, CACalifornia$398.25$258.04
Modesto, CACalifornia$398.25$258.04
Napa, CACalifornia$444.17$275.56
Oxnard, CACalifornia$420.20$268.99
Redding, CACalifornia$398.25$258.04
Rest of CaliforniaCalifornia$398.25$258.04
Riverside, CACalifornia$415.67$275.47

59070 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.

$351.93

$475.97

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
59070 office rate range by state
State / territoryOffice rate rangeLocalities
AK$475.971
AL$357.561
AR$351.931
AZ$390.111
CA$398.25–$475.8329
CO$405.021
CT$432.061
DC$450.601
DE$396.701
FL$423.02–$494.043
GA$394.67–$417.792
GU$405.001
HI$405.001
IA$355.491
ID$360.521
IL$418.62–$476.074
IN$362.481
KS$359.361
KY$379.061
LA$380.68–$400.362
MA$404.61–$439.092
MD$402.87–$450.603
ME$368.63–$381.792
MI$394.99–$434.592
MN$370.331
MO$377.45–$395.033
MS$364.481
MT$403.371
NC$371.881
ND$371.141
NE$355.891
NH$403.991
NJ$432.00–$446.482
NM$399.621
NV$394.571
NY$378.40–$494.775
OH$388.401
OK$372.261
OR$386.60–$412.072
PA$385.86–$424.382
PR$404.631
RI$406.731
SC$381.761
SD$367.331
TN$362.041
TX$383.56–$424.078
UT$387.231
VA$384.44–$450.602
VI$404.631
VT$374.801
WA$402.14–$442.542
WI$358.321
WV$403.581
WY$389.331

See 59070 in every payment locality

How the 59070 rate is calculated

Each of 59070’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 · 59070

RVUs × geographic indexes × conversion factor

Office or facility?

Work5.11

5.11 RVUs× 1.000 GPCI

Practice expense5.34

5.34 RVUs× 1.000 GPCI

Malpractice1.63

1.63 RVUs× 1.000 GPCI

Adjusted RVUs

12.0800

Conversion factor

$33.4009

Medicare rate

$403.48

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

6,637

Code
59070
Physician work
5.11
Practice expense
5.34
Malpractice
1.63

GPCI2026.csv

25

Locality
Marin County, CA
Physician work
1.095
Practice expense
1.410
Malpractice
0.459
Office calculation for 59070 in Marin County, CA
ComponentRVULocality factorAdjusted
Physician work5.11× 1.0955.5955
Practice expense5.34× 1.4107.5294
Malpractice1.63× 0.4590.7482
Total RVUs13.8730
Conversion factor× 33.4009

Office rate, Marin County, CA$463.37

Office: (5.11 × 1.095 + 5.34 × 1.41 + 1.63 × 0.459) × $33.4009 = $463.37

Facility: (5.11 × 1.095 + 1.51 × 1.41 + 1.63 × 0.459) × $33.4009 = $283.00

Open 59070 in the RVU calculator

Payment rules and modifiers for 59070

The CMS indicators that decide how 59070 is paid alongside other services.

CMS payment indicators · 59070

Amnioinfusion, transabdominal approach

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

59070 without 51 · national office

$403.48

Amnioinfusion, transabdominal approach

59070-51 · Second procedure: 50%

$201.74

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

How 59070 has changed in Marin County, CA

59070 · Office / nonfacility

$463.37

Effective 2026-10-01

The base rate is $19.32 higher than on 2025-10-01, moving from $444.05 to $463.37 (4.4%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

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
  1. January 1, 2026

    RVU26A

    $444.05changed to$463.37

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 5.24 changed to 5.11
    • Practice expense RVU 5.13 changed to 5.34
    • Malpractice RVU 1.59 changed to 1.63
    • 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.

  2. January 1, 2025

    RVU25A

    $459.96changed to$444.05

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 5.19 changed to 5.13
    • Malpractice RVU 1.60 changed to 1.59

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $452.45changed to$459.96

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $458.59changed to$452.45

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 5.17 changed to 5.19
    • Malpractice RVU 1.56 changed to 1.60
    • 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
  5. January 1, 2023

    RVU23A

    $456.02changed to$458.59

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 5.10 changed to 5.17
    • Malpractice RVU 1.50 changed to 1.56
    • 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.

  6. January 1, 2022

    RVU22A

    $458.00changed to$456.02

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 5.17 changed to 5.10
    • Malpractice RVU 1.46 changed to 1.50
    • Work GPCI 1.071 changed to 1.077
    • Practice expense GPCI 1.311 changed to 1.329

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $458.56changed to$458.00

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 4.94 changed to 5.17
    • Malpractice RVU 1.44 changed to 1.46
    • 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.

  8. January 1, 2020

    RVU20A

    $453.54changed to$458.56

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.95 changed to 4.94
    • Malpractice RVU 1.34 changed to 1.44
    • 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.

  9. January 1, 2019

    RVU19A

    $455.41changed to$453.54

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 5.06 changed to 4.95
    • Work GPCI 1.062 changed to 1.065
    • Practice expense GPCI 1.279 changed to 1.291

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $453.62changed to$455.41

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 5.17 changed to 5.06
    • Malpractice RVU 1.10 changed to 1.34
    • 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.

  11. January 1, 2017

    RVU17A

    No ratechanged to$453.62

    Held through RVU17B, RVU17C, RVU17D.

  12. 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.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$463.37$283.00RVU26D
2026-07-01$463.37$283.00RVU26C
2026-04-01$463.37$283.00RVU26B
2026-01-01$463.37$283.00RVU26A
2025-10-01$444.05$320.58RVU25D
2025-07-01$444.05$320.58RVU25C
2025-04-01$444.05$320.58RVU25B
2025-01-01$444.05$320.58RVU25A
2024-10-01$459.96$329.12RVU24D
2024-07-01$459.96$329.12RVU24C
2024-04-01$459.96$329.12RVU24B
2024-03-09$459.96$329.12RVU24AR
2024-01-01$452.45$323.75RVU24A
2023-10-01$458.59$330.09RVU23D
2023-07-01$458.59$330.09RVU23C
2023-04-01$458.59$330.09RVU23B
2023-01-01$458.59$330.09RVU23A
2022-10-01$456.02$329.08RVU22D
2022-07-01$456.02$329.08RVU22C
2022-04-01$456.02$329.08RVU22B
2022-01-01$456.02$329.08RVU22A
2021-10-01$458.00$329.00RVU21D
2021-07-01$458.00$329.00RVU21C
2021-04-01$458.00$329.00RVU21B
2021-01-01$458.00$329.00RVU21A
2020-10-01$458.56$335.26RVU20D
2020-07-01$458.56$335.26RVU20C
2020-04-01$458.56$335.26RVU20B
2020-01-01$458.56$335.26RVU20A
2019-10-01$453.54$332.11RVU19D
2019-07-01$453.54$332.11RVU19C
2019-04-01$453.54$332.11RVU19B
2019-01-01$453.54$332.11RVU19A
2018-10-01$455.41$332.01RVU18D
2018-07-01$455.41$332.01RVU18C
2018-04-01$455.41$332.01RVU18B
2018-01-01$455.41$332.01RVU18AR1
2017-10-01$453.62$332.74RVU17D
2017-07-01$453.62$332.74RVU17C
2017-04-01$453.62$332.74RVU17B
2017-01-01$453.62$332.74RVU17A
2016-10-01Rate data unavailableRate data unavailableRVU16D
2016-07-01Rate data unavailableRate data unavailableRVU16C
2016-04-01Rate data unavailableRate data unavailableRVU16B
2016-01-01Rate data unavailableRate data unavailableRVU16A
2015-10-01Rate data unavailableRate data unavailableRVU15D
2015-07-01Rate data unavailableRate data unavailableRVU15C
2015-04-01Rate data unavailableRate data unavailableRVU15B
2015-01-01Rate data unavailableRate data unavailableRVU15A
2014-10-01Rate data unavailableRate data unavailableRVU14D
2014-07-01Rate data unavailableRate data unavailableRVU14C
2014-04-01Rate data unavailableRate data unavailableRVU14B
2014-01-01Rate data unavailableRate data unavailableRVU14A
2013-10-01Rate data unavailableRate data unavailableRVU13D
2013-07-01Rate data unavailableRate data unavailableRVU13C
2013-04-01Rate data unavailableRate data unavailableRVU13B
2013-01-01Rate data unavailableRate data unavailableRVU13AR

Price 59070 for an earlier date of service

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

Browse all communities in California

59070 billing questions

How does this differ from therapeutic amniocentesis?

This code covers adding fluid to the amniotic cavity through a transabdominal approach. Therapeutic amniocentesis, 59001, covers removing fluid.

Can ultrasound guidance be billed separately?

Ultrasound guidance is included in this code. Do not separately report the guidance for the same infusion.

Should modifier 50 be appended?

No. CMS identifies bilateral adjustment as inappropriate for this service.

What documentation supports reporting the code?

Document the indication, transabdominal access, ultrasound guidance, and fluid instillation. The record should distinguish the infusion from fluid drainage or diagnostic sampling.

How is this handled when another procedure is performed in the same session?

CMS applies the standard multiple-procedure reduction: the highest-valued procedure is paid in full, and other procedures are paid at 50%. The 0-day global period includes same-day preoperative and postoperative care.

May an assistant or co-surgeon be reported?

Assistant-at-surgery payment may be available. Co-surgeons and team surgery are not permitted under the CMS rules for this code.

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
RVUs for 59070PPRRVU2026_Oct_nonQPP.csv, line 6,637 (RVU26D)
Geographic factors for Marin County, CAGPCI2026.csv, line 25 (RVU26D)

Open CMS sourceHow we calculate rates

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