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Billing code 66630: Iris excisionMedicare rate & RVUs

Reports surgical removal of iris tissue through a corneoscleral incision when the documented indication is other than glaucoma or removal of an iris lesion.

CMS RVU26DEffective Oct 1, 2026109 payment localities43 Medicare services in 2024

Medicare pays $486.32 for 66630 nationally in a facility.

Medicare rate · 66630

Iris excision

Swap in your local Medicare rate.

Work RVUs
7.1
Total RVUs
14.56
Global days
090

National rate · 2026

$486.32

Facility setting, before claim adjustments.

See every locality for 66630 → · 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 66630 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 66630 covers

An ophthalmologist removes a portion of iris through a corneoscleral incision for a documented indication other than glaucoma. The operation is performed in an operating room. The operative report should identify the non-glaucoma reason for surgery, the eye treated, the approach, and the iris tissue removed. A lesion-directed procedure is distinguished by its specific lesion-removal purpose.

Report 66630 when the procedure and indication match this non-glaucoma iridectomy, rather than a glaucoma-directed or lesion-removal code. CMS assigns a 90-day major-surgery global period, including the day-before preoperative visit and 90 days of related postoperative care. When other procedures are performed in the same session, the highest-valued procedure is paid in full and the others at 50%. Bilateral reporting with modifier 50 is paid at 150%. CMS does not pay an assistant at surgery and does not permit co-surgeons or team surgery for this code.

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 66630 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 of 109 payment localities

66630 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$449.39
Alaska*Unavailable$611.47
ArizonaUnavailable$476.48
ArkansasUnavailable$444.75
AtlantaUnavailable$494.48
AustinUnavailable$498.03
BakersfieldUnavailable$505.63
Baltimore/Surr. CntysUnavailable$511.37
BeaumontUnavailable$464.25
BrazoriaUnavailable$482.03

66630 rates by state

Office rate range in each state. Select a state to see its payment localities.

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

View every state and territory as a table
66630 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

How the 66630 rate is calculated

Each of 66630’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 · 66630

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 7.10Practice expense 6.90Malpractice 0.56

14.5600 adjusted RVUs×$33.4009 conversion factor=$486.32

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

Payment rules and modifiers for 66630

66630 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 66630

Iris excision

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 · 66630

Iris excision

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.

  • 24 Unrelated E/M visit by the same physician
  • 79 Unrelated procedure (starts its own global period)
  • 58 Staged, more extensive, or therapy procedure that was planned
  • 78 Unplanned 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

66630 without 50 · national facility

$486.32

Iris excision

66630-50 · Bilateral: 150%

$729.48

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

66630 compared with similar codes

Compare codes

66630 vs 66625 vs 66600 vs 66680: national Medicare rates

Swap in your local Medicare rate.

  • 66630
    Iris excision · 7.1 wRVU
    —
  • 66625
    Iridectomy · 5.17 wRVU
    —
  • 66600
    Iris surgery · 9.87 wRVU
    —
  • 66680
    Iris repair · 7.77 wRVU
    —

How to choose

66625Iridectomy
Choose 66625 for an iridectomy performed to treat glaucoma. Code 66630 is for a non-glaucoma indication.
66600Iris surgery
Choose 66600 when the operation removes an iris lesion. Code 66630 is for a non-glaucoma iridectomy not directed at lesion removal.
66680Iris repair
Code 66680 describes repair involving the iris and ciliary body; 66630 removes iris tissue instead of reconstructing those structures.

Codes related to 66630

Related codes aren’t interchangeable: bill the code that matches the service performed.

Codes related to 66630
CodeHow it relatesNational office range
Same family
66625IridectomyGlaucoma-directed iridectomy in the same surgical family.No office rate
66600Iris surgeryIris-lesion removal variant in the iridectomy family.No office rate
Used instead
66680Iris repairRepairs iris and ciliary body tissue rather than removing iris tissue.No office rate

66630 billing questions

How is 66630 distinguished from 66625?

Use 66630 when the iridectomy is for a documented indication other than glaucoma. Code 66625 is the glaucoma-directed iridectomy in this family.

When is 66600 a better choice?

Use 66600 when the procedure is specifically for removal of an iris lesion. Code 66630 describes an iridectomy for a non-glaucoma indication other than lesion removal.

What documentation supports 66630?

The operative report should state the non-glaucoma indication, identify the eye and surgical approach, and describe the iris tissue removed.

How are bilateral procedures reported?

CMS identifies this as a bilateral procedure; reporting modifier 50 is paid at 150%.

Are the preoperative visit and postoperative care separately included?

The 90-day global period includes the day-before preoperative visit and 90 days of related postoperative care.

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 66630PPRRVU2026_Oct_nonQPP.csv, line 7,382 (RVU26D)

Open CMS sourceHow we calculate rates

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