CPT code 66821: YAG laser capsulotomy, laser discission of secondary membrane2026 Medicare rate & RVUs in Detroit, MI

Laser opening of an opacified posterior lens capsule or anterior hyaloid membrane after cataract surgery, reported per eye with a 90-day global period.

CMS RVU26DEffective Oct 1, 2026One payment locality1.3M Medicare services in 2024

In Detroit, MI, Medicare pays $333.52 for 66821 in the office and $275.50 when it’s performed in a hospital or facility.

$333.52Office (non-facility)
$275.50Hospital or facility
−0.5%vs the national office rate ($335.35)

Check a contract rate as a % of Medicare · 66821 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 66821 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Detroit, MI
  2. What 66821 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 66821 covers

This procedure treats clouding of the posterior lens capsule behind an intraocular lens after cataract extraction. An ophthalmologist uses a laser, usually an Nd:YAG laser, to create an opening that clears the visual axis. The target may include an opacified anterior hyaloid membrane. Treatment is commonly performed in an ophthalmology office or ambulatory surgery center without a surgical incision.

Select 66821 for laser discission of the secondary membrane, including one or more stages needed to complete the capsulotomy; document the affected eye, examination findings, reason for treatment, and laser procedure. Report unilateral treatment with the appropriate laterality modifier. For treatment of both eyes, Medicare pays bilateral reporting with modifier 50 at 150%. Medicare assigns a 90-day global period that includes the day-before preoperative visit and related postoperative care. When other procedures are performed in the same session, the highest-valued procedure is paid in full and other procedures at 50%. Assistant-at-surgery payment is statutorily 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 Detroit, MI compares for 66821

Across 109 of 109 payment localities, the office rate for 66821 runs from $300.87 in Arkansas to $439.08 in San Benito County, CA. Detroit, MI pays $333.52. The RVUs are the same everywhere; the geographic indexes change the dollars.

66821 in Detroit, MI vs other payment areas
  1. Detroit, MI · this page$333.52
  2. Rest of Michigan · Michigan$317.65−$15.87
  3. Los Angeles, CA · California$376.59+$43.07
  4. Washington, DC area · District of Columbia$380.70+$47.18
  5. Miami, FL · Florida$356.96+$23.44
  6. Chicago, IL · Illinois$348.02+$14.50
  7. Manhattan, NY · New York$382.31+$48.79

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

Every other payment area

66821 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$401.23$337.20
AlabamaAlabama$304.75$252.14
ArkansasArkansas$300.87$249.23
ArizonaArizona$327.45$269.20
Bakersfield, CACalifornia$354.91$289.01
Chico, CACalifornia$354.08$288.18
El Centro, CACalifornia$354.12$288.22
Fresno, CACalifornia$354.08$288.18

66821 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.

$300.87

$401.23

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

View every state and territory as a table
66821 office rate range by state
State / territoryOffice rate rangeLocalities
AK$401.231
AL$304.751
AR$300.871
AZ$327.451
CA$354.08–$439.0829
CO$348.661
CT$355.941
DC$380.701
DE$332.471
FL$330.05–$356.963
GA$313.65–$340.812
GU$361.391
HI$361.391
IA$311.971
ID$313.681
IL$321.27–$348.404
IN$315.301
KS$310.491
KY$310.681
LA$310.18–$323.752
MA$346.87–$380.852
MD$338.36–$380.703
ME$314.93–$330.322
MI$317.65–$333.522
MN$335.721
MO$305.35–$325.003
MS$303.171
MT$335.331
NC$317.871
ND$330.391
NE$313.541
NH$343.151
NJ$360.45–$377.442
NM$319.111
NV$334.171
NY$322.08–$390.405
OH$316.641
OK$310.401
OR$332.00–$358.942
PA$317.19–$347.812
PR$337.591
RI$343.681
SC$317.691
SD$329.801
TN$311.841
TX$315.33–$347.138
UT$321.551
VA$329.22–$380.702
VI$337.591
VT$329.061
WA$346.23–$388.362
WI$320.501
WV$310.681
WY$333.171

See 66821 in every payment locality

How the 66821 rate is calculated

Each of 66821’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 · 66821

RVUs × geographic indexes × conversion factor

Office or facility?

Work3.33

3.33 RVUs× 1.000 GPCI

Practice expense6.46

6.46 RVUs× 1.000 GPCI

Malpractice0.25

0.25 RVUs× 1.000 GPCI

Adjusted RVUs

10.0400

Conversion factor

$33.4009

Medicare rate

$335.35

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

The exact Detroit, MI inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

7,396

Code
66821
Physician work
3.33
Practice expense
6.46
Malpractice
0.25

GPCI2026.csv

64

Locality
Detroit, MI
Physician work
1.000
Practice expense
0.965
Malpractice
1.686
Office calculation for 66821 in Detroit, MI
ComponentRVULocality factorAdjusted
Physician work3.33× 1.0003.3300
Practice expense6.46× 0.9656.2339
Malpractice0.25× 1.6860.4215
Total RVUs9.9854
Conversion factor× 33.4009

Office rate, Detroit, MI$333.52

Office: (3.33 × 1 + 6.46 × 0.965 + 0.25 × 1.686) × $33.4009 = $333.52

Facility: (3.33 × 1 + 4.66 × 0.965 + 0.25 × 1.686) × $33.4009 = $275.50

Open 66821 in the RVU calculator

Payment rules and modifiers for 66821

66821 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 66821

YAG laser capsulotomy, laser discission of secondary membrane

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 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)0.10/0.70/0.20Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 66821

YAG laser capsulotomy, laser discission of secondary membrane

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

66821 without 50 · national office

$335.35

YAG laser capsulotomy, laser discission of secondary membrane

66821-50 · Bilateral: 150%

$503.03

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 66821 has changed in Detroit, MI

66821 · Office / nonfacility

$333.52

Effective 2026-10-01

The base rate is $10.29 higher than on 2025-10-01, moving from $323.23 to $333.52 (3.2%).

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

    $323.23changed to$333.52

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 3.42 changed to 3.33
    • Practice expense RVU 6.22 changed to 6.46
    • Work GPCI 1.003 changed to 1.000
    • Practice expense GPCI 0.986 changed to 0.965
    • Malpractice GPCI 1.718 changed to 1.686

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $335.59changed to$323.23

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 6.31 changed to 6.22

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $330.11changed to$335.59

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $339.13changed to$330.11

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 6.22 changed to 6.31
    • Work GPCI 1.000 changed to 1.003
    • Practice expense GPCI 0.992 changed to 0.986
    • Malpractice GPCI 1.670 changed to 1.718
  5. January 1, 2023

    RVU23A

    $342.16changed to$339.13

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 6.08 changed to 6.22
    • Practice expense GPCI 0.997 changed to 0.992
    • Malpractice GPCI 1.622 changed to 1.670

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $344.30changed to$342.16

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 6.06 changed to 6.08

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $343.96changed to$344.30

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 5.72 changed to 6.06
    • Malpractice RVU 0.26 changed to 0.25
    • Practice expense GPCI 0.993 changed to 0.997
    • Malpractice GPCI 1.657 changed to 1.622

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $343.43changed to$343.96

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 5.75 changed to 5.72
    • Malpractice RVU 0.25 changed to 0.26
    • Practice expense GPCI 0.989 changed to 0.993
    • Malpractice GPCI 1.691 changed to 1.657

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $342.35changed to$343.43

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 5.73 changed to 5.75

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $337.79changed to$342.35

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 5.66 changed to 5.73
    • Practice expense GPCI 0.992 changed to 0.989
    • Malpractice GPCI 1.510 changed to 1.691

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $335.77changed to$337.79

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense GPCI 0.994 changed to 0.992
    • Malpractice GPCI 1.328 changed to 1.510

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $336.75changed to$335.77

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 5.64 changed to 5.66
    • Malpractice RVU 0.26 changed to 0.25

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $335.07changed to$336.75

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $355.94changed to$335.07

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 5.63 changed to 5.64
    • Malpractice RVU 0.51 changed to 0.26
    • Work GPCI 1.010 changed to 1.000
    • Practice expense GPCI 1.009 changed to 0.994
    • Malpractice GPCI 1.571 changed to 1.328

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $367.08changed to$355.94

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 6.19 changed to 5.63
    • Malpractice RVU 0.53 changed to 0.51
    • Work GPCI 1.022 changed to 1.010
    • Practice expense GPCI 1.023 changed to 1.009
    • Malpractice GPCI 1.814 changed to 1.571

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $367.08

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$333.52$275.50RVU26D
2026-07-01$333.52$275.50RVU26C
2026-04-01$333.52$275.50RVU26B
2026-01-01$333.52$275.50RVU26A
2025-10-01$323.23$302.50RVU25D
2025-07-01$323.23$302.50RVU25C
2025-04-01$323.23$302.50RVU25B
2025-01-01$323.23$302.50RVU25A
2024-10-01$335.59$312.94RVU24D
2024-07-01$335.59$312.94RVU24C
2024-04-01$335.59$312.94RVU24B
2024-03-09$335.59$312.94RVU24AR
2024-01-01$330.11$307.83RVU24A
2023-10-01$339.13$315.60RVU23D
2023-07-01$339.13$315.60RVU23C
2023-04-01$339.13$315.60RVU23B
2023-01-01$339.13$315.60RVU23A
2022-10-01$342.16$317.66RVU22D
2022-07-01$342.16$317.66RVU22C
2022-04-01$342.16$317.66RVU22B
2022-01-01$342.16$317.66RVU22A
2021-10-01$344.30$319.95RVU21D
2021-07-01$344.30$319.95RVU21C
2021-04-01$344.30$319.95RVU21B
2021-01-01$344.30$319.95RVU21A
2020-10-01$343.96$322.82RVU20D
2020-07-01$343.96$322.82RVU20C
2020-04-01$343.96$322.82RVU20B
2020-01-01$343.96$322.82RVU20A
2019-10-01$343.43$323.12RVU19D
2019-07-01$343.43$323.12RVU19C
2019-04-01$343.43$323.12RVU19B
2019-01-01$343.43$323.12RVU19A
2018-10-01$342.35$323.48RVU18D
2018-07-01$342.35$323.48RVU18C
2018-04-01$342.35$323.48RVU18B
2018-01-01$342.35$323.48RVU18AR1
2017-10-01$337.79$319.28RVU17D
2017-07-01$337.79$319.28RVU17C
2017-04-01$337.79$319.28RVU17B
2017-01-01$337.79$319.28RVU17A
2016-10-01$335.77$317.27RVU16D
2016-07-01$335.77$317.27RVU16C
2016-04-01$335.77$317.27RVU16B
2016-01-01$335.77$317.27RVU16A
2015-10-01$336.75$318.18RVU15D
2015-07-01$336.75$318.18RVU15C
2015-04-01$335.07$316.59RVU15B
2015-01-01$335.07$316.59RVU15A
2014-10-01$355.94$337.87RVU14D
2014-07-01$355.94$337.87RVU14C
2014-04-01$355.94$337.87RVU14B
2014-01-01$355.94$337.87RVU14A
2013-10-01$367.08$346.89RVU13D
2013-07-01$367.08$346.89RVU13C
2013-04-01$367.08$346.89RVU13B
2013-01-01$367.08$346.89RVU13AR

Price 66821 for an earlier date of service

Where the Detroit, MI rate applies

Detroit, MI is a Medicare payment area, not a city. Our Census mapping connects it to 98 cities and communities in Michigan. Some span more than one payment area; confirm with the service ZIP.

  • Detroit
  • Allen Park
  • Ann Arbor
  • Armada
  • Auburn Hills
  • Barton Hills
  • Belleville
  • Berkley

Browse all communities in Michigan

66821 billing questions

Can additional laser sessions on the same eye be billed while completing the opening?

Do not report each stage needed to complete the same capsulotomy as a separate service. The code encompasses one or more stages.

Is modifier 79 automatic if treatment occurs during the cataract surgery global period?

No. Posterior capsule opacity after cataract extraction is not automatically an unrelated condition. Determine whether a separate procedure is reportable during the original surgeon's global period before selecting a postoperative modifier.

Can an eye examination on the day of laser treatment be billed?

Routine preoperative evaluation is included. A separately documented examination that results in the decision to perform this major procedure may be reported with modifier 57.

How is treatment of both eyes reported?

Use RT or LT for one eye. When both eyes are treated, Medicare's bilateral rule provides for modifier 50 and payment at 150%.

Is a surgical assistant payable for this procedure?

No. Medicare has a statutory restriction on assistant-at-surgery payment for 66821; 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 66821PPRRVU2026_Oct_nonQPP.csv, line 7,396 (RVU26D)
Geographic factors for Detroit, MIGPCI2026.csv, line 64 (RVU26D)

Open CMS sourceHow we calculate rates

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