CPT code 74742: Fallopian tube X-ray, selective catheterization2026 Medicare rate & RVUs in Illinois
Reports X-ray imaging of the fallopian tubes with selective catheterization, often used to evaluate tubal patency during an infertility assessment.
CMS doesn’t publish an office rate for 74742 in Illinois.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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On this page 9 sections
What 74742 covers
Selective fallopian tube imaging uses catheterization through the cervix to place contrast for radiographic evaluation of the tubes. It can show whether a tube is open or obstructed and is commonly used in infertility assessment. Gynecology and radiology teams may provide the catheterization, imaging, and interpretation in an outpatient or hospital setting.
Medicare assigns CPT 74742 physician fee schedule status C, meaning there is no national payment amount and the Medicare Administrative Contractor prices each claim. The unmodified code represents the global service, including technical imaging work and professional interpretation. When billed separately, modifier 26 identifies the professional interpretation and modifier TC identifies the technical component, including equipment and staff.
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 74742 pays more and less in Illinois
The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.
| Payment locality | Office | Facility |
|---|---|---|
| Chicago, IL | Unavailable | Unavailable |
| East St. Louis, IL | Unavailable | Unavailable |
| Rest of Illinois | Unavailable | Unavailable |
| Suburban Chicago, IL | Unavailable | Unavailable |
How the 74742 rate is calculated
Each of 74742’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 · 74742
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 74742
The CMS indicators that decide how 74742 is paid alongside other services.
CMS payment indicators · 74742
Fallopian tube X-ray, selective catheterization
| Rule | CMS value | What it means |
|---|---|---|
| Global period | XXX | The global surgery concept doesn’t apply. |
| 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
74742 without 26 · national facility
$0.00
Fallopian tube X-ray, selective catheterization
74742-26 · Professional component
$28.06
Pays only the interpretation and report.
74742 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 74740HysterosalpingographyUterus and fallopian tubes
- 74742 describes fallopian tube imaging with selective catheterization. 74740 describes hysterosalpingographic imaging.
- 58340Uterine catheterizationFor hysterosalpingography or sonohysterography
- 58340 describes catheter placement and contrast introduction for hysterosalpingography or saline infusion sonohysterography; 74742 describes the radiologic examination.
- 58350Tubal patency testChromotubation of oviducts
- 58350 is laparoscopic dye testing of the oviducts. 74742 evaluates the tubes with catheterization and X-ray imaging.
74742 billing questions
How is 74742 different from 74740?
74742 describes radiologic examination of the fallopian tubes with selective catheterization. 74740 describes hysterosalpingographic imaging.
Does 74742 include the radiologist’s interpretation?
The unmodified code represents the global service, including the professional interpretation and technical imaging service. Modifier 26 identifies the professional portion when billed separately.
What does modifier TC identify?
Modifier TC identifies the technical portion, including equipment and staff, when that portion is billed separately.
Who determines Medicare payment for 74742?
The Medicare Administrative Contractor prices each claim because 74742 has physician fee schedule status C.
Does 74742 treat a blocked fallopian tube?
No. It describes diagnostic X-ray evaluation of the fallopian tubes, not treatment of an obstruction.
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
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