CPT code 45378: Colonoscopy, diagnostic, no tissue removal2026 Medicare rate & RVUs in Alaska

In Alaska, Medicare pays $441.84 for 45378 in the office and $214.53 when it’s performed in a hospital or facility.

Check a contract rate as a % of Medicare · 45378 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 45378 covers

A gastroenterologist or colorectal surgeon advances a flexible endoscope through the colon to examine the bowel, commonly for evaluation of symptoms or an abnormal finding. The service can include specimen collection by brushing or washing, but it does not describe taking tissue for biopsy or treating a lesion. It is typically performed in an endoscopy unit or hospital outpatient department, with sedation commonly provided as part of the procedural setting.

Choose this code when the documented service is diagnostic inspection rather than a more specific colonoscopy procedure. The report should support the examination performed and whether a biopsy or treatment was done; when a more specific procedure is performed, report that service rather than separately reporting the diagnostic examination. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Modifier 53 is separately priced. 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.

How Alaska compares for 45378

Across 109 of 109 payment localities, the office rate for 45378 runs from $335.05 in Arkansas to $497.55 in San Benito County, CA. Alaska pays $441.84. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

45378 rates by state

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

See 45378 in every payment locality

How the 45378 rate is calculated

Each of 45378’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.

Payment rules and modifiers for 45378

The CMS indicators that decide how 45378 is paid alongside other services.

What modifiers do to the payment

When to use modifier 51

Codes related to 45378

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

How 45378 has changed in Alaska

Price 45378 for an earlier date of service

Where the Alaska rate applies

Alaska is a Medicare payment area, not a city. Our Census mapping connects it to 355 cities and communities in Alaska. Some span more than one payment area; confirm with the service ZIP.

• Adak
• Akhiok
• Akiachak
• Akiak
• Akutan
• Alakanuk
• Alatna
• Alcan Border

Browse all communities in Alaska

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

Open CMS sourceHow we calculate rates