Billing code 44401: Colonoscopy ablationMedicare rate & RVUs

Reports endoscopic ablation of a colonic lesion during colonoscopy performed through a stoma, when tissue is treated rather than resected.

CMS RVU26DEffective Oct 1, 2026109 payment localities32 Medicare services in 2024

Medicare pays $2,581.22 for 44401 nationally in the office and $213.10 in a hospital or facility. Local office rates run $2,231.79–$3,660.99.

Medicare rate · 44401

Colonoscopy ablation

Swap in your local Medicare rate.

Work RVUs
4.23
Total RVUs
77.28
Global days
000

National rate · 2026

$2,581.22

Office setting, before claim adjustments.

See every locality for 44401 → · 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 44401 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 44401 covers

A gastroenterologist or colorectal surgeon uses a colonoscope passed through a colostomy or other stoma to ablate a tumor, polyp, or other lesion in the colon. Ablation destroys the targeted tissue in place rather than removing it as a specimen; it may be selected when the lesion is not treated by a removal technique. The procedure is typically performed in a hospital outpatient or ambulatory endoscopy setting.

Report this code when the stoma is the route of access and ablation is the principal lesion treatment. The operative note should identify the stoma route, lesion location and treatment performed, and distinguish ablation from resection or injection. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed in the same session, endoscopy family pricing applies. Modifier 50 is inappropriate; assistant-at-surgery payment is statutorily restricted, and 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 44401 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

$2231.79 to $3660.99

$2231.79$2946.39$3660.99
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

44401 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$2,271.38$199.27
Alaska*$2,802.39$280.34
Arizona$2,503.81$209.10
Arkansas$2,231.79$197.57
Atlanta$2,623.59$217.57
Austin$2,720.32$214.85
Bakersfield$2,810.49$215.03
Baltimore/Surr. Cntys$2,764.17$223.18
Beaumont$2,361.93$206.93
Brazoria$2,557.08$210.27

44401 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.

$2,231.79

$3,235.03

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

View every state and territory as a table
44401 office rate range by state
State / territoryOffice rate rangeLocalities
AK$2,802.391
AL$2,271.381
AR$2,231.791
AZ$2,503.811
CA$2,809.07–$3,660.9929
CO$2,734.631
CT$2,774.011
DC$3,022.141
DE$2,551.251
FL$2,482.45–$2,704.623
GA$2,322.42–$2,623.592
GU$2,906.731
HI$2,906.731
IA$2,365.701
ID$2,379.011
IL$2,379.15–$2,659.784
IN$2,396.181
KS$2,340.711
KY$2,310.801
LA$2,301.77–$2,440.332
MA$2,708.78–$3,055.592
MD$2,610.44–$3,022.143
ME$2,381.35–$2,553.612
MI$2,372.34–$2,507.142
MN$2,640.471
MO$2,246.27–$2,464.893
MS$2,240.161
MT$2,581.191
NC$2,413.131
ND$2,571.901
NE$2,384.791
NH$2,678.651
NJ$2,811.43–$2,979.072
NM$2,383.171
NV$2,581.021
NY$2,455.35–$3,061.905
OH$2,370.441
OK$2,318.331
OR$2,566.86–$2,848.552
PA$2,381.57–$2,686.192
PR$2,607.651
RI$2,662.211
SC$2,394.621
SD$2,570.801
TN$2,353.351
TX$2,361.93–$2,720.328
UT$2,434.171
VA$2,535.39–$3,022.142
VI$2,607.651
VT$2,549.221
WA$2,707.79–$3,135.712
WI$2,468.541
WV$2,270.411
WY$2,577.141

How the 44401 rate is calculated

Each of 44401’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 · 44401

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 4.23Practice expense 72.58Malpractice 0.47

77.2800 adjusted RVUs×$33.4009 conversion factor=$2,581.22

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

Payment rules and modifiers for 44401

The CMS indicators that decide how 44401 is paid alongside other services.

CMS payment indicators · 44401

Colonoscopy ablation

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures3Endoscopy family rules apply.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
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 51 · payment effect

With and without the modifier

44401 without 51 · national office

$2,581.22

Colonoscopy ablation

44401-51 · Second procedure: 50%

$1,290.61

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

44401 compared with similar codes

Compare codes

44401 vs 45388 vs 44403 vs 44404: national Medicare rates

Swap in your local Medicare rate.

  • 44401
    Colonoscopy ablation · 4.23 wRVU
    $2,581.22
  • 45388
    Colonoscopy ablation · 4.76 wRVU
    $2,659.38+$78.16
  • 44403
    Colonoscopy · 5.36 wRVU
    —
  • 44404
    Colonoscopy · 2.94 wRVU
    $465.61−$2,115.61

How to choose

45388Colonoscopy ablation
Both describe colonoscopic ablation, but 44401 is for access through a stoma; 45388 is used for the standard route.
44403Colonoscopy
Both are stoma-route colonoscopy procedures. Choose 44401 for ablation and 44403 when the lesion is removed by endoscopic resection.
44404Colonoscopy
44404 describes injection during colonoscopy through a stoma. It is distinct from 44401, which reports ablation of a lesion.

44401 billing questions

How does this differ from 45388?

This code is for colonoscopy performed through a stoma. Code 45388 describes colonoscopic ablation through the standard route rather than through a stoma.

When should 44403 be selected instead?

Use 44403 when the lesion is treated by endoscopic resection through the stoma. Use 44401 when the documented treatment is ablation rather than removal.

Can ablation and another endoscopic service be reported together?

Related endoscopies performed in the same session are subject to CMS endoscopy family pricing. Document each service actually performed; the family-pricing rule affects payment.

Should modifier 50 be appended for multiple lesions?

No. CMS identifies bilateral adjustment as inappropriate for this code. The descriptor concerns colonoscopy through a stoma, not a bilateral procedure.

What documentation supports reporting 44401?

Document the stoma route, the lesion's location, and that the lesion was ablated. The note should make clear that treatment was ablation rather than resection or injection.

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 44401PPRRVU2026_Oct_nonQPP.csv, line 5,416 (RVU26D)

Open CMS sourceHow we calculate rates

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