Billing code 66761: Laser iridotomyMedicare rate & RVUs

An ophthalmologist uses laser energy to create an opening in the peripheral iris, commonly to address narrow angles or angle-closure risk.

CMS RVU26DEffective Oct 1, 2026109 payment localities48.2K Medicare services in 2024

Medicare pays $299.27 for 66761 nationally in the office and $202.08 in a hospital or facility. Local office rates run $268.35–$392.40.

Medicare rate · 66761

Laser iridotomy

Swap in your local Medicare rate.

Work RVUs
2.93
Total RVUs
8.96
Global days
010

National rate · 2026

$299.27

Office setting, before claim adjustments.

See every locality for 66761 → · 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
  1. Medicare rate
  2. What 66761 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 66761 covers

This procedure creates an opening through the peripheral iris with laser energy so aqueous fluid can pass between the posterior and anterior chambers. Ophthalmologists commonly perform it at a slit lamp in an office setting for eyes with narrow or occludable angles, including treatment or prevention of angle closure. The service is distinct from reshaping the iris with laser or removing iris tissue through an incision.

Report the service for the laser iridotomy session, not by laser pulse or opening. Documentation should identify the treated eye or eyes, the angle-closure indication, and the laser treatment performed. CMS assigns a 10-day global period, which includes related postoperative visits during that period. When multiple procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. For bilateral treatment, 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.

Where 66761 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

$268.35 to $392.40

$268.35$330.38$392.40
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

66761 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$271.83$186.78
Alaska*$357.52$254.00
Arizona$292.20$198.01
Arkansas$268.35$184.85
Atlanta$304.15$205.40
Austin$309.89$207.05
Bakersfield$316.89$210.36
Baltimore/Surr. Cntys$316.75$212.45
Beaumont$281.29$192.84
Brazoria$296.69$200.37

66761 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.

$268.35

$357.52

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

View every state and territory as a table
66761 office rate range by state
State / territoryOffice rate rangeLocalities
AK$357.521
AL$271.831
AR$268.351
AZ$292.201
CA$316.16–$392.4029
CO$311.261
CT$317.721
DC$339.931
DE$296.691
FL$294.43–$318.463
GA$279.72–$304.152
GU$322.761
HI$322.761
IA$278.351
ID$279.871
IL$286.53–$310.874
IN$281.331
KS$277.001
KY$277.111
LA$276.65–$288.822
MA$309.63–$340.122
MD$301.98–$339.933
ME$280.97–$294.812
MI$283.34–$297.522
MN$299.731
MO$272.30–$289.973
MS$270.381
MT$299.261
NC$283.621
ND$294.911
NE$279.761
NH$306.311
NJ$321.75–$336.992
NM$284.641
NV$298.241
NY$287.39–$348.515
OH$282.451
OK$276.871
OR$296.31–$320.502
PA$282.96–$310.412
PR$301.301
RI$306.741
SC$283.421
SD$294.391
TN$278.211
TX$281.29–$309.898
UT$286.881
VA$293.81–$339.932
VI$301.301
VT$293.701
WA$309.07–$346.872
WI$286.041
WV$277.021
WY$297.361

How the 66761 rate is calculated

Each of 66761’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 · 66761

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 2.93Practice expense 5.81Malpractice 0.22

8.9600 adjusted RVUs×$33.4009 conversion factor=$299.27

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 66761

66761 has a 10-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 66761

Laser iridotomy

RuleCMS valueWhat it means
Global period010Minor procedure: the day of the procedure plus 10 days after are 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.
Split (54/55/56)0.10/0.80/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 66761

Laser iridotomy

10-day global period ends

Oct 11, 2026

Covers Oct 1, 2026 through Oct 11, 2026 (11 days).

Visit on Oct 31, 2026

After the global period ends: visits and procedures are billed normally.

SurgeryVisit
Sep 28, 2026Oct 14, 2026

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

66761 without 50 · national office

$299.27

Laser iridotomy

66761-50 · Bilateral: 150%

$448.91

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

66761 compared with similar codes

Compare codes

66761 vs 66762 vs 66740 vs 66770: national Medicare rates

Swap in your local Medicare rate.

  • 66761
    Laser iridotomy · 2.93 wRVU
    $299.27
  • 66762
    Iris laser · 5.25 wRVU
    $481.64+$182.37
  • 66740
    Ciliary body ablation · 5.01 wRVU
    $443.56+$144.29
  • 66770
    Intraocular lesion removal · 5.98 wRVU
    $534.08+$234.81

How to choose

66762Iris laser
Choose 66761 for a laser opening through the peripheral iris; 66762 is for laser reshaping of the iris, with or without an opening.
66740Ciliary body ablation
66740 describes an incisional iridectomy for glaucoma. Use 66761 when the documented treatment is a laser-created iris opening.
66770Intraocular lesion removal
66770 is for removal of an iris lesion. It is not the code for a laser opening used to address narrow angles.

66761 billing questions

How is this different from 66762?

66761 creates an opening through the peripheral iris. Code 66762 describes laser reshaping of the iris, with or without an iridotomy.

Is the code reported per eye or per laser pulse?

Report the service by treatment session, not by pulse or individual opening. For bilateral treatment, CMS specifies modifier 50 payment at 150%.

Are postoperative checks separately reported during the global period?

Related postoperative visits for 10 days are included in the global period.

What happens when another procedure is performed in the same session?

The highest-valued procedure is paid in full, and the other procedure or procedures are subject to the standard multiple-procedure reduction.

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

Assistant-at-surgery payment is restricted. 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 66761PPRRVU2026_Oct_nonQPP.csv, line 7,392 (RVU26D)

Open CMS sourceHow we calculate rates

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