CPT code 65800: Eye paracentesis, aqueous removal2026 Medicare rate & RVUs in Napa, CA

Anterior chamber paracentesis removes aqueous humor, commonly to reduce elevated eye pressure or obtain a sample for diagnostic testing.

CMS RVU26DEffective Oct 1, 2026One payment locality12.8K Medicare services in 2024

In Napa, CA, Medicare pays $142.98 for 65800 in the office and $77.83 when it’s performed in a hospital or facility.

$142.98Office (non-facility)
$77.83Hospital or facility
+18.6%vs the national office rate ($120.58)

Check a contract rate as a % of Medicare · 65800 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 65800 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Napa, CA
  2. What 65800 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 65800 covers

Code 65800 describes entry into the eye’s anterior chamber to withdraw aqueous humor. Ophthalmologists may perform it to lower elevated pressure, including in an acute pressure crisis, or to collect aqueous for diagnostic analysis. The procedure may be done in an office or facility setting and is distinct from removing vitreous or performing a more extensive glaucoma operation.

Report the code when the documented service is anterior chamber paracentesis with aqueous removal. Record the treated eye, clinical reason, procedure performed, and whether a specimen was collected. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures are performed in one session, the highest-valued procedure is paid in full and the others are subject to the standard multiple procedure reduction. For bilateral services, modifier 50 is paid at 150%. Assistant-at-surgery payment is restricted; co-surgeons and team surgery 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 Napa, CA compares for 65800

Across 109 of 109 payment localities, the office rate for 65800 runs from $109.21 in Arkansas to $153.72 in San Benito County, CA. Napa, CA pays $142.98. The RVUs are the same everywhere; the geographic indexes change the dollars.

65800 in Napa, CA vs other payment areas
  1. Napa, CA · this page$142.98
  2. Bakersfield, CA · California$126.37−$16.61
  3. Chico, CA · California$125.98−$17.00
  4. El Centro, CA · California$126.00−$16.98
  5. Fresno, CA · California$125.98−$17.00
  6. Hanford, CA · California$125.98−$17.00
  7. Los Angeles, CA · California$133.50−$9.48

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

Every other payment area

65800 in every other Medicare payment locality
Payment localityOfficeFacility
Madera, CACalifornia$125.98$71.80
Merced, CACalifornia$125.98$71.80
Modesto, CACalifornia$125.98$71.80
Oxnard, CACalifornia$132.62$74.19
Redding, CACalifornia$125.98$71.80
Rest of CaliforniaCalifornia$125.98$71.80
Riverside, CACalifornia$127.30$73.12
Sacramento, CACalifornia$131.40$73.91

65800 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.

$109.21

$148.00

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

View every state and territory as a table
65800 office rate range by state
State / territoryOffice rate rangeLocalities
AK$148.001
AL$110.491
AR$109.211
AZ$117.931
CA$125.98–$153.7229
CO$124.571
CT$127.561
DC$135.611
DE$119.621
FL$119.65–$129.443
GA$114.13–$122.602
GU$128.041
HI$128.041
IA$112.481
ID$113.121
IL$117.02–$126.454
IN$113.641
KS$112.181
KY$112.821
LA$112.73–$117.182
MA$124.10–$135.142
MD$121.55–$135.613
ME$113.72–$118.502
MI$115.28–$120.992
MN$119.691
MO$111.25–$117.383
MS$110.251
MT$120.571
NC$114.651
ND$118.201
NE$112.941
NH$122.821
NJ$129.10–$134.672
NM$115.841
NV$119.971
NY$116.05–$139.825
OH$114.801
OK$112.541
OR$119.12–$127.762
PA$114.88–$124.992
PR$121.251
RI$123.291
SC$114.901
SD$117.921
TN$112.641
TX$114.28–$124.098
UT$116.161
VA$118.26–$135.612
VI$121.251
VT$117.931
WA$123.81–$137.502
WI$115.001
WV$113.551
WY$119.541

See 65800 in every payment locality

How the 65800 rate is calculated

Each of 65800’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 · 65800

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.49

1.49 RVUs× 1.000 GPCI

Practice expense2.00

2.00 RVUs× 1.000 GPCI

Malpractice0.12

0.12 RVUs× 1.000 GPCI

Adjusted RVUs

3.6100

Conversion factor

$33.4009

Medicare rate

$120.58

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Napa, CA inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

7,346

Code
65800
Physician work
1.49
Practice expense
2.00
Malpractice
0.12

GPCI2026.csv

17

Locality
Napa, CA
Physician work
1.063
Practice expense
1.318
Malpractice
0.508
Office calculation for 65800 in Napa, CA
ComponentRVULocality factorAdjusted
Physician work1.49× 1.0631.5839
Practice expense2.00× 1.3182.6360
Malpractice0.12× 0.5080.0610
Total RVUs4.2808
Conversion factor× 33.4009

Office rate, Napa, CA$142.98

Office: (1.49 × 1.063 + 2 × 1.318 + 0.12 × 0.508) × $33.4009 = $142.98

Facility: (1.49 × 1.063 + 0.52 × 1.318 + 0.12 × 0.508) × $33.4009 = $77.83

Open 65800 in the RVU calculator

Payment rules and modifiers for 65800

The CMS indicators that decide how 65800 is paid alongside other services.

CMS payment indicators · 65800

Eye paracentesis, aqueous removal

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)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

65800 without 50 · national office

$120.58

Eye paracentesis, aqueous removal

65800-50 · Bilateral: 150%

$180.87

Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).

When to use modifier 50

How 65800 has changed in Napa, CA

65800 · Office / nonfacility

$142.98

Effective 2026-10-01

The base rate is $7.49 higher than on 2025-10-01, moving from $135.49 to $142.98 (5.5%).

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

    $135.49changed to$142.98

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.53 changed to 1.49
    • Practice expense RVU 1.91 changed to 2.00
    • Malpractice RVU 0.13 changed to 0.12
    • Work GPCI 1.058 changed to 1.063
    • Practice expense GPCI 1.310 changed to 1.318
    • Malpractice GPCI 0.521 changed to 0.508

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $139.25changed to$135.49

    • Conversion factor 33.2875 changed to 32.3465
    • Malpractice RVU 0.12 changed to 0.13

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $136.98changed to$139.25

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $137.60changed to$136.98

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 1.89 changed to 1.91
    • Work GPCI 1.051 changed to 1.058
    • Practice expense GPCI 1.265 changed to 1.310
    • Malpractice GPCI 0.513 changed to 0.521
  5. January 1, 2023

    RVU23A

    $134.46changed to$137.60

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 1.83 changed to 1.89
    • Malpractice RVU 0.11 changed to 0.12
    • Work GPCI 1.044 changed to 1.051
    • Practice expense GPCI 1.220 changed to 1.265
    • Malpractice GPCI 0.504 changed to 0.513

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $135.50changed to$134.46

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 1.82 changed to 1.83
    • Malpractice RVU 0.13 changed to 0.11

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $138.08changed to$135.50

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 1.75 changed to 1.82
    • Malpractice RVU 0.11 changed to 0.13
    • Work GPCI 1.049 changed to 1.044
    • Practice expense GPCI 1.238 changed to 1.220
    • Malpractice GPCI 0.496 changed to 0.504

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $140.56changed to$138.08

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 1.78 changed to 1.75
    • Work GPCI 1.055 changed to 1.049
    • Practice expense GPCI 1.256 changed to 1.238
    • Malpractice GPCI 0.458 changed to 0.496

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $140.41changed to$140.56

    • Conversion factor 35.9996 changed to 36.0391

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $138.84changed to$140.41

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 1.73 changed to 1.78
    • Work GPCI 1.057 changed to 1.055
    • Practice expense GPCI 1.271 changed to 1.256
    • Malpractice GPCI 0.477 changed to 0.458

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    No ratechanged to$138.84

    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$142.98$77.83RVU26D
2026-07-01$142.98$77.83RVU26C
2026-04-01$142.98$77.83RVU26B
2026-01-01$142.98$77.83RVU26A
2025-10-01$135.49$96.50RVU25D
2025-07-01$135.49$96.50RVU25C
2025-04-01$135.49$96.50RVU25B
2025-01-01$135.49$96.50RVU25A
2024-10-01$139.25$98.70RVU24D
2024-07-01$139.25$98.70RVU24C
2024-04-01$139.25$98.70RVU24B
2024-03-09$139.25$98.70RVU24AR
2024-01-01$136.98$97.09RVU24A
2023-10-01$137.60$97.73RVU23D
2023-07-01$137.60$97.73RVU23C
2023-04-01$137.60$97.73RVU23B
2023-01-01$137.60$97.73RVU23A
2022-10-01$134.46$96.88RVU22D
2022-07-01$134.46$96.88RVU22C
2022-04-01$134.46$96.88RVU22B
2022-01-01$134.46$96.88RVU22A
2021-10-01$135.50$98.46RVU21D
2021-07-01$135.50$98.46RVU21C
2021-04-01$135.50$98.46RVU21B
2021-01-01$135.50$98.46RVU21A
2020-10-01$138.08$101.89RVU20D
2020-07-01$138.08$101.89RVU20C
2020-04-01$138.08$101.89RVU20B
2020-01-01$138.08$101.89RVU20A
2019-10-01$140.56$102.99RVU19D
2019-07-01$140.56$102.99RVU19C
2019-04-01$140.56$102.99RVU19B
2019-01-01$140.56$102.99RVU19A
2018-10-01$140.41$103.78RVU18D
2018-07-01$140.41$103.78RVU18C
2018-04-01$140.41$103.78RVU18B
2018-01-01$140.41$103.78RVU18AR1
2017-10-01$138.84$103.71RVU17D
2017-07-01$138.84$103.71RVU17C
2017-04-01$138.84$103.71RVU17B
2017-01-01$138.84$103.71RVU17A
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 65800 for an earlier date of service

Where the Napa, CA rate applies

Napa, CA is a Medicare payment area, not a city. Our Census mapping connects it to 11 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

  • Napa
  • American Canyon
  • Angwin
  • Calistoga
  • Deer Park
  • Moskowite Corner
  • Oakville
  • Rutherford

Browse all communities in California

65800 billing questions

How is 65800 distinguished from 65810?

65800 is for anterior chamber paracentesis with aqueous removal. Compare the documented work with 65810 when medication injection is also performed or the service otherwise fits that code’s expanded description.

Can 65800 be reported with another eye procedure on the same date?

The code identifies a separate procedure, so report it when the paracentesis is a distinct service rather than an integral part of a more extensive procedure. Apply the multiple procedure reduction when separate procedures are performed in the same session.

What documentation supports 65800?

Document anterior chamber entry and aqueous removal, the eye treated, and the indication, such as elevated pressure or diagnostic sampling. If fluid is collected, note the specimen and its disposition.

How is bilateral 65800 reported?

For procedures on both eyes, report modifier 50; CMS pays the bilateral procedure at 150%.

Can an assistant or co-surgeon be reported for this procedure?

CMS does not pay an assistant at surgery for 65800. Co-surgeons and team surgery are not permitted.

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 65800PPRRVU2026_Oct_nonQPP.csv, line 7,346 (RVU26D)
Geographic factors for Napa, CAGPCI2026.csv, line 17 (RVU26D)

Open CMS sourceHow we calculate rates

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