CPT code 58340: Uterine catheterization, for hysterosalpingography or sonohysterography2026 Medicare rate & RVUs in Guam
Reports transcervical catheter placement and fluid introduction for hysterosalpingography or saline-infusion sonohysterography during evaluation of the uterine cavity or fallopian tubes.
Medicare pays $262.71 for 58340 in the office in Guam (Hawaii, Guam, HI). 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.
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What 58340 covers
A clinician, commonly a gynecologist or fertility specialist, passes a narrow catheter through the cervix into the uterine cavity and introduces contrast or saline for imaging. In hysterosalpingography, contrast helps show the uterine cavity and fallopian tubes on imaging; in saline-infusion sonohysterography, saline outlines the cavity during ultrasound. These procedures are commonly performed in an office or imaging setting during evaluation of infertility, tubal patency, or suspected intracavitary abnormalities.
Report 58340 for the catheter placement and fluid introduction, supported by documentation of the method and indication; report the applicable imaging service separately when performed. This is a minor procedure with a 0-day global period, so same-day preoperative and postoperative care is included. For multiple procedures in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service, 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.
58340 in Hawaii, Guam, HI
| Payment locality | Office | Facility |
|---|---|---|
| Hawaii, Guam, HI | $262.71 | $52.70 |
How the 58340 rate is calculated
Each of 58340’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 · 58340
RVUs × geographic indexes × conversion factor
Work0.86
0.86 RVUs× 1.000 GPCI
Practice expense6.09
6.09 RVUs× 1.000 GPCI
Malpractice0.14
0.14 RVUs× 1.000 GPCI
Adjusted RVUs
7.0900
Conversion factor
$33.4009
Medicare rate
$236.81
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 58340
The CMS indicators that decide how 58340 is paid alongside other services.
CMS payment indicators · 58340
Uterine catheterization, for hysterosalpingography or sonohysterography
| 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 | 2 | Standard reduction: highest-valued procedure at 100%, others at 50%. |
| 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
58340 without 51 · national office
$236.81
Uterine catheterization, for hysterosalpingography or sonohysterography
58340-51 · Second procedure: 50%
$118.41
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%).
58340 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 74740HysterosalpingographyUterus and fallopian tubes
- Use 58340 for catheter placement and contrast introduction; 74740 represents the radiological supervision and interpretation for hysterosalpingography.
- 76831SonohysterographySaline infusion
- Use 58340 for catheter placement and saline introduction during sonohysterography; 76831 represents the ultrasound imaging service.
- 58345Tubal reopeningTranscervical catheterization
- 58340 supports diagnostic imaging by introducing fluid through a uterine catheter. 58345 is for transcervical fallopian-tube recanalization, an intervention intended to reopen a tube.
58340 billing questions
How is 58340 different from 74740?
58340 covers the transcervical catheter placement and fluid introduction. Code 74740 represents the radiological supervision and interpretation for hysterosalpingography.
Can 58340 be reported with 76831?
Yes, when saline-infusion sonohysterography is performed, 58340 represents the catheter placement and saline introduction, while 76831 represents the ultrasound service.
What documentation supports 58340?
Document the indication, catheter placement through the cervix, and introduction of contrast or saline for the imaging procedure.
Does modifier 50 apply when both fallopian tubes are evaluated?
No. The CMS bilateral adjustment does not apply to 58340, and modifier 50 is inappropriate.
How does the 0-day global period affect same-day care?
Same-day preoperative and postoperative care is included in the procedure's payment.
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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