The site of sperm placement determines the code: uterine cavity for 58321, cervix for 58322.
On this page
CMS RVU26D · Effective 2026-10-01
58321 Insemination Medicare reimbursement rates in Mississippi
Reports placement of prepared sperm into the uterine cavity by catheter during fertility treatment, such as a planned intrauterine insemination cycle. Compare 58321 office and facility rates across CMS payment localities in Mississippi.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 58321 in Mississippi?
Mississippi has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$75.71
1 of 1 localities have a supported rate.
Payment area: Mississippi
One mapped payment locality.
Facility setting
$39.47
1 of 1 localities have a supported rate.
Payment area: Mississippi
One mapped payment locality.
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Fertility treatment
About 58321: Intrauterine sperm insemination
Reports placement of prepared sperm into the uterine cavity by catheter during fertility treatment, such as a planned intrauterine insemination cycle.
A clinician passes a thin catheter through the cervix and deposits sperm into the uterine cavity, commonly as part of a timed fertility treatment cycle. Gynecologists and reproductive endocrinologists typically perform the procedure in a fertility clinic or office. The sperm may come from a partner or donor; the insemination technique, rather than the sperm source, distinguishes this service from intracervical insemination.
Choose this code when sperm is placed in the uterus, and document the insemination site and procedure performed. Report sperm washing separately when that service is performed and documented. CMS assigns a 0-day global period, so same-day preoperative and postoperative care is included. With multiple procedures in one session, the highest-valued procedure is paid in full and others at 50%. Modifier 50 is inappropriate. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery are not permitted.
CMS billing rules for 58321
- Global period
- Minor procedure with a 0-day global period: same-day preoperative and postoperative care is included.
- Multiple procedures
- Standard multiple procedure reduction: the highest-valued procedure is paid in full and others at 50% when performed in the same session.
- Bilateral procedures
- Bilateral adjustment does not apply; the descriptor or anatomy makes modifier 50 inappropriate.
- Assistant at surgery
- Assistant at surgery is paid only with documentation of medical necessity.
- Co-surgeons
- Co-surgeons not permitted.
- Team surgery
- Team surgery not permitted.
Where the value comes from
- Work RVU0.90 · 36%
- Practice expense (office) RVU1.45 · 58%
- Malpractice RVU0.16 · 6%
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.
58321 compared with similar codes
Office rates for Mississippi, from the same CMS release.
Compare 58321 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Mississippi →
Office / nonfacility
$75.71
Facility
$39.47
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 58321 in Mississippi.
PPRRVU2026_Oct_nonQPP.csv
6,542
- Code
- 58321
- Physician work
- 0.90
- Practice expense
- 1.45
- Malpractice
- 0.16
GPCI2026.csv
67
- Locality
- Mississippi
- Physician work
- 1.000
- Practice expense
- 0.861
- Malpractice
- 0.739
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.90 | × 1.000 | 0.9000 |
| Practice expense | 1.45 | × 0.861 | 1.2484 |
| Malpractice | 0.16 | × 0.739 | 0.1182 |
| Total RVUs | 2.2667 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Mississippi$75.71
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.9 | 1 |
| Practice expense | 1.45 | 0.861 |
| Malpractice | 0.16 | 0.739 |
(0.9 × 1 + 1.45 × 0.861 + 0.16 × 0.739) × $33.4009 = $75.71
Facility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.9 | 1 |
| Practice expense | 0.19 | 0.861 |
| Malpractice | 0.16 | 0.739 |
(0.9 × 1 + 0.19 × 0.861 + 0.16 × 0.739) × $33.4009 = $39.47
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
58321 billing questions
How do I distinguish this from 58322?
Use 58321 when sperm is deposited in the uterine cavity. Code 58322 describes placement in the cervix.
Can sperm washing be reported separately?
Yes. When sperm washing is performed and documented, report 58323 separately from the insemination service.
Should modifier 50 be appended?
No. The CMS bilateral adjustment does not apply, and modifier 50 is inappropriate for this service.
What same-day care is included?
The 0-day global period includes same-day preoperative and postoperative care. If multiple procedures are performed in the session, the highest-valued procedure is paid in full and others at 50%.
What documentation supports reporting 58321?
Document that sperm was placed in the uterine cavity, the procedure performed, and relevant details such as the sperm source and any separately performed sperm washing.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
