$289.33–$306.86
Both cover the face, ears, eyelids, nose, and lips. Use 11644 for a lesion plus margins measuring 3.1-4 cm; 11643 covers the smaller band.
On this page
CMS RVU26D · Effective 2026-10-01
11644 Malignant lesion excision Medicare reimbursement rates in Missouri
Removal of a malignant skin lesion on the face or specified related sites when the lesion plus margins measures 3.1 to 4 cm. Compare 11644 office and facility rates across CMS payment localities in Missouri.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 11644 in Missouri?
Missouri has 3 payment localities in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the 3 payment areas shown below, using the same CMS release.
Office / nonfacility
$360.29–$381.71
3 of 3 localities have a supported rate.
Facility setting
$228.43–$236.07
3 of 3 localities have a supported rate.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Where 11644 pays more and less in Missouri
3 payment localities
$360.29 to $381.71
Dermatologic surgery
About 11644: Malignant lesion excision, face and related sites
Removal of a malignant skin lesion on the face or specified related sites when the lesion plus margins measures 3.1 to 4 cm.
This code covers excision of a malignant skin lesion on the face, ears, eyelids, nose, or lips, including the margins taken around it. Dermatologists commonly perform these procedures in an office or outpatient setting; plastic surgeons and ophthalmologists may perform them for lesions in their respective areas. The size category is based on the lesion’s greatest diameter plus the narrowest margins needed for complete removal, measured before excision—not the resulting wound or specimen after removal.
Report the code when the documented site and excised diameter including margins fit this category. Record the lesion location, measurement, and malignant diagnosis; pathology findings can support the diagnosis. Simple closure is included, while a separately documented intermediate or complex repair may be reported separately. CMS assigns a 10-day global period, so related postoperative visits during that period are included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment is statutorily restricted, and co-surgeons and team surgery are not permitted.
CMS billing rules for 11644
- Global period
- Minor procedure with a 10-day global period: related postoperative visits for 10 days are included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Statutory restriction: assistant at surgery is not paid.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU4.23 · 36%
- Practice expense (office) RVU6.94 · 59%
- Malpractice RVU0.59 · 5%
8.3K
Medicare services in 2024 · #1574 by national volume
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.
11644 compared with similar codes
Office rates for Missouri, from the same CMS release.
$475.92–$502.00
The anatomic sites are the same, but 11646 applies when the lesion plus margins exceeds 4 cm.
$283.79–$301.66
The size band is the same, but 11604 is for the trunk, arms, or legs rather than the face and related sites.
$310.59–$329.53
The size band is the same, but 11624 is for the scalp, neck, hands, feet, or genitalia.
Compare 11644 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
3 of 3 payment localities
Metropolitan Kansas City →
Office / nonfacility
$378.20
Facility
$234.56
Metropolitan St. Louis →
Office / nonfacility
$381.71
Facility
$236.07
Rest Of Missouri →
Office / nonfacility
$360.29
Facility
$228.43
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11644 billing questions
How is the 3.1-4 cm size determined?
Measure the lesion’s greatest diameter together with the narrowest margins needed for complete removal, before excision. Do not use the postoperative defect or specimen dimensions.
How does this differ from code 11643?
Both codes cover the same anatomic sites and malignant-lesion excision. Choose 11644 when the lesion plus margins measures 3.1-4 cm; 11643 is for the smaller size band.
Is closure included in this code?
Simple closure is included. A separately documented intermediate or complex repair may be reported when the repair service meets the applicable criteria.
Can modifier 50 be used for lesions on both sides?
No. CMS identifies bilateral adjustment as inappropriate for this code; modifier 50 should not be used.
Are postoperative visits included?
Related postoperative visits during the 10-day global period are included in the procedure payment.
How does CMS handle other procedures performed in the same session?
Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the other procedures are paid at 50%. Assistant-at-surgery payment is statutorily restricted; 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 indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
1,35411641,,Exc f/e/e/n/l mal+mrg 0.6-1,A,,2.12,4.72,,1.65,,0.26,7.10,4.03,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,35511642,,Exc f/e/e/n/l mal+mrg 1.1-2,A,,2.55,5.14,,1.78,,0.30,7.99,4.63,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,35611643,,Exc f/e/e/n/l mal+mrg 2.1-3,A,,3.33,5.70,,2.03,,0.43,9.46,5.79,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,35711644,,Exc f/e/e/n/l mal+mrg 3.1-4,A,,4.23,6.94,,2.36,,0.59,11.76,7.18,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,35811646,,Exc f/e/e/n/l mal+mrg >4 cm,A,,6.10,8.38,,2.92,,0.95,15.43,9.97,0,010,0.10,0.80,0.10,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
1,3591170F,,Fxnl status assessed,M,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
1,36011719,,Trim nail(s) any number,R,,0.17,0.25,,0.02,,0.01,0.43,0.20,0,000,0.00,0.00,0.00,2,0,1,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00