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Billing code 44366: Enteroscopy hemostasisMedicare rate & RVUs

Reports extended small-bowel endoscopy used to stop bleeding beyond the second portion of the duodenum when the examined segment does not include the ileum.

CMS RVU26DEffective Oct 1, 2026109 payment localities5.2K Medicare services in 2024

Medicare pays $210.43 for 44366 nationally in a facility.

Medicare rate · 44366

Enteroscopy hemostasis

Swap in your local Medicare rate.

Work RVUs
4.19
Total RVUs
6.30
Global days
000

National rate · 2026

$210.43

Facility setting, before claim adjustments.

See every locality for 44366 → · 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 44366 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 44366 covers

A gastroenterologist advances an enteroscope beyond the second portion of the duodenum to identify and treat a bleeding source in the small bowel, without examining the ileum. This service is used when bleeding is seen during enteroscopy, such as from a small-bowel vascular lesion or ulcer. Hemostasis may involve an endoscopic technique such as injection, thermal treatment, or mechanical clipping.

Report this code when the endoscopy includes active treatment to control bleeding, rather than diagnostic inspection alone, biopsy alone, or removal of a lesion as the primary service. The procedure note should support the extent examined, the bleeding site, and the hemostasis method. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, endoscopy-family pricing applies. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this code, 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 44366 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

44366 office and facility rates by payment locality
Payment localityOfficeFacility
AlabamaUnavailable$196.97
Alaska*Unavailable$277.26
ArizonaUnavailable$206.54
ArkansasUnavailable$195.32
AtlantaUnavailable$214.75
AustinUnavailable$212.21
BakersfieldUnavailable$212.53
Baltimore/Surr. CntysUnavailable$220.27
BeaumontUnavailable$204.37
BrazoriaUnavailable$207.74

44366 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
44366 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 44366 rate is calculated

Each of 44366’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 · 44366

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 4.19Practice expense 1.66Malpractice 0.45

6.3000 adjusted RVUs×$33.4009 conversion factor=$210.43

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

Payment rules and modifiers for 44366

The CMS indicators that decide how 44366 is paid alongside other services.

CMS payment indicators · 44366

Enteroscopy hemostasis

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

44366 without 51 · national facility

$210.43

Enteroscopy hemostasis

44366-51 · Second procedure: 50%

$105.22

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

44366 compared with similar codes

Compare codes

44366 vs 44360 vs 44365 vs 44376: national Medicare rates

Swap in your local Medicare rate.

  • 44366
    Enteroscopy hemostasis · 4.19 wRVU
    —
  • 44360
    Small-bowel exam · 2.43 wRVU
    —
  • 44365
    Small bowel endoscopy · 3.13 wRVU
    —
  • 44376
    Small-bowel enteroscopy · 5.02 wRVU
    —

How to choose

44360Small-bowel exam
44360 describes diagnostic enteroscopy beyond the second portion of the duodenum without ileal examination. Choose 44366 when the procedure includes treatment to control bleeding.
44365Small bowel endoscopy
44365 is for lesion removal using hot biopsy forceps or bipolar cautery. 44366 is for endoscopic control of bleeding.
44376Small-bowel enteroscopy
44376 is the diagnostic enteroscopy variant that includes the ileum. 44366 describes hemostasis during enteroscopy that does not include ileal examination.

Codes related to 44366

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

Codes related to 44366
CodeHow it relatesNational office range
Same family
44360Small-bowel examDiagnostic enteroscopy beyond the second duodenal portion without ileal examination.No office rate
44361Small bowel endoscopySame general examination extent, with biopsy as the reported intervention.No office rate
44364Small-bowel endoscopySame general examination extent, with snare removal of a lesion.No office rate
44365Small bowel endoscopySame general examination extent, with lesion removal by hot forceps or bipolar cautery.No office rate
44369Small-bowel enteroscopySame general examination extent, with ablation of a lesion not amenable to snare removal.No office rate
44376Small-bowel enteroscopyDiagnostic enteroscopy variant that includes examination of the ileum.No office rate
44377Small bowel endoscopyEnteroscopy with ileal examination and biopsy.No office rate

44366 billing questions

When should 44366 be reported instead of a diagnostic enteroscopy?

Use 44366 when the enteroscopy includes endoscopic treatment to control bleeding. Diagnostic inspection without hemostasis is represented by 44360 when the examined segment does not include the ileum.

How does 44366 differ from 44365?

44366 is for controlling bleeding. 44365 describes removal of a lesion using hot biopsy forceps or bipolar cautery, rather than hemostasis as the reported service.

Can a separate diagnostic enteroscopy be billed with 44366?

When related endoscopies are performed together, CMS endoscopy-family pricing applies. The documentation should show the services performed and the distinct clinical work supporting any additional reported endoscopy.

Can modifier 50 or an assistant-at-surgery claim be used?

No. CMS identifies bilateral adjustment as inappropriate for this code and does not pay an assistant at surgery for it.

What documentation supports reporting 44366?

Document the small-bowel segment reached, the bleeding source or site, and the endoscopic method used to control bleeding. The documented extent should not include the ileum for this code.

What is the global period for 44366?

It has a 0-day global period. Same-day preoperative and postoperative care is included.

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 44366PPRRVU2026_Oct_nonQPP.csv, line 5,394 (RVU26D)

Open CMS sourceHow we calculate rates

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