CPT code 77001: Fluoroscopic guidance2026 Medicare rate & RVUs in Guam
Reports fluoroscopic guidance and interpretation during central venous access device placement or replacement, alongside the primary access procedure.
Medicare pays $109.41 for 77001 in the office in Guam (Hawaii, Guam). 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 9 sections
What 77001 covers
This service uses real-time X-ray imaging to guide placement or replacement of a central venous access device, such as a central catheter or implanted port. A physician performing the access procedure may use fluoroscopy to follow the wire and catheter and assess device position; radiology personnel may provide the imaging equipment and technical support. It is commonly performed in hospitals, procedure suites, and other settings where central venous access devices are placed or replaced.
Report 77001 only with a primary procedure for central venous access device placement or replacement; it is not a standalone service. The record should identify the associated access procedure, the fluoroscopic guidance provided, and the physician’s interpretation. CMS treats the service as having professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the equipment and staff, and billing without either modifier represents the global service. Payment for this add-on is within the primary procedure’s global period.
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.
77001 in Hawaii, Guam
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam | $109.41 | Unavailable |
How the 77001 rate is calculated
Each of 77001’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 · 77001
RVUs × geographic indexes × conversion factor
Work0.37
0.37 RVUs× 1.000 GPCI
Practice expense2.53
2.53 RVUs× 1.000 GPCI
Malpractice0.05
0.05 RVUs× 1.000 GPCI
Adjusted RVUs
2.9500
Conversion factor
$33.4009
Medicare rate
$98.53
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 77001
The CMS indicators that decide how 77001 is paid alongside other services.
CMS payment indicators · 77001
Fluoroscopic guidance
| Rule | CMS value | What it means |
|---|---|---|
| Global period | ZZZ | Add-on code: falls within the primary procedure’s global period. |
| Multiple procedures | 0 | No multiple-procedure reduction. |
| Bilateral (modifier 50) | 0 | The 150% bilateral adjustment doesn’t apply. |
| Assistant at surgery (80/81/82/AS) | 0 | Not paid without supporting documentation. |
| Co-surgeons (62) | 0 | Not permitted. |
| Team surgery (66) | 0 | Not permitted. |
| Professional/technical | 1 | Diagnostic test with separate professional (26) and technical (TC) components. |
What modifiers do to the payment
Modifier 26 · payment effect
With and without the modifier
77001 without 26 · national office
$98.53
Fluoroscopic guidance
77001-26 · Professional component
$17.70
Pays only the interpretation and report.
77001 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 77002Fluoroscopy guidance
- 77002 covers fluoroscopic needle placement, such as for biopsy, aspiration, injection, or localization. Use 77001 for guidance associated with central venous access device placement or replacement.
- 77003Fluoroscopic guidance
- 77003 is for fluoroscopic guidance and localization during spine or paraspinous injection procedures. 77001 is tied to a central venous access device procedure.
- 36561Port placement
- 36561 reports placement of a tunneled central venous access device with a subcutaneous port in a patient age 5 or older. 77001 reports the associated fluoroscopic guidance, not the device placement itself.
77001 billing questions
Can 77001 be reported by itself?
No. It is an add-on for fluoroscopic guidance associated with a primary central venous access device procedure and must be billed with that primary procedure.
When should modifier 26 or TC be used?
Use modifier 26 for the physician’s interpretation when professional and technical services are split. Use TC for the equipment and staff; without either modifier, the line represents the global service.
Is 77001 the code for placing the catheter or port?
No. The primary procedure code describes the central venous access device placement or replacement. 77001 reports the associated fluoroscopic guidance.
How does 77001 differ from 77002?
77001 is for fluoroscopic guidance associated with central venous access device placement or replacement. 77002 is used for fluoroscopic guidance for needle placement, such as for biopsy, aspiration, injection, or localization.
What documentation supports reporting 77001?
Document the primary central venous access procedure, the use of fluoroscopy to guide the device procedure, and the physician’s interpretation. The add-on must be linked to the primary procedure.
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 77001 and the rest of your codes on one sheet
Build a fee sheet from your own code list at your locality, put your payer contracts beside Medicare, and see what changed each quarter.
Build my fee sheetOr price your code list free →