CPT code 45346: Flexible sigmoidoscopy, lesion ablation2026 Medicare rate & RVUs in Baytown, Texas
CPT 45346: $2,369.41–$2,480.65 office ($140.13–$148.01 facility) across 2 localities in Baytown, TX in 2026 Medicare. Compare each area.
Medicare pays $2,369.41–$2,480.65 for 45346 in the office in Baytown, Texas, from Rest of Texas to Houston, TX. Which amount applies depends on the service address.
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 6 sections
Where 45346 pays more and less in Baytown, Texas
Baytown, Texas maps to 2 Medicare payment localities in our Census-to-CMS crosswalk. A city name alone doesn’t confirm an address’s payment area.
| Payment locality | Office | Facility |
|---|---|---|
| Houston, TX | $2,480.65 | $148.01 |
| Rest of Texas | $2,369.41 | $140.13 |
How payment areas work in Baytown
City limits and Medicare payment areas are different maps. These are the payment areas that cover the city’s counties; the service ZIP decides which one applies.
- Rest Of State · Chambers County
- Houston · Harris County
City boundaries: 2026 Census geography · Census source · CMS county-to-locality definitions
How the 45346 rate is calculated
Each of 45346’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 · 45346
RVUs × geographic indexes × conversion factor
Work2.74
2.74 RVUs× 1.000 GPCI
Practice expense71.54
71.54 RVUs× 1.000 GPCI
Malpractice0.34
0.34 RVUs× 1.000 GPCI
Adjusted RVUs
74.6200
Conversion factor
$33.4009
Medicare rate
$2,492.38
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 45346
The CMS indicators that decide how 45346 is paid alongside other services.
CMS payment indicators · 45346
Flexible sigmoidoscopy, lesion ablation
| Rule | CMS value | What it means |
|---|---|---|
| Global period | 000 | Same-day global: pre- and post-op care on the day of the procedure is included. |
| Multiple procedures | 3 | Endoscopy family rules apply. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 1 | Not paid (statutory restriction). |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 0 | Physician service: no professional/technical split. |
What modifiers do to the payment
Modifier 51 · payment effect
With and without the modifier
45346 without 51 · national office
$2,492.38
Flexible sigmoidoscopy, lesion ablation
45346-51 · Second procedure: 50%
$1,246.19
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%).
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
Fee sheets
Put 45346 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Build my fee sheet