Use 86510 for histoplasmin skin testing and 86580 for intradermal tuberculosis skin testing; the antigen and clinical question differ.
On this page
CMS RVU26D · Effective 2026-10-01
86510 Histoplasmosis skin test Medicare reimbursement rates in Minnesota
Reports administration of a histoplasmin skin test to assess delayed skin reactivity to Histoplasma antigen, with interpretation reported separately. Compare 86510 office and facility rates across CMS payment localities in Minnesota.
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 86510 in Minnesota?
Minnesota 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
$8.35
1 of 1 localities have a supported rate.
Payment area: Minnesota
One mapped payment locality.
Facility setting
No supported rate
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.
Immunology
About 86510: Histoplasmin skin test administration
Reports administration of a histoplasmin skin test to assess delayed skin reactivity to Histoplasma antigen, with interpretation reported separately.
This service covers administration of a histoplasmin antigen skin test, typically by intradermal injection in an outpatient clinical setting. A physician or clinical staff member may administer the antigen as part of evaluating a patient’s skin reactivity to Histoplasma exposure. The test is distinct from a blood antibody assay: it evaluates a skin response rather than measuring circulating antibodies.
Report 86510 for the technical testing service. Document the antigen administered, the administration, and the clinical reason for testing. CMS classifies this as a technical-component-only code; interpretation is covered by a separate code when performed and documented. CMS assigns no physician work RVUs to 86510. Keep the test administration and the separately reported interpretation distinct in the record and claim.
CMS billing rules for 86510
- Professional and technical components
- Technical-component-only code: a separate code covers interpretation.
Where the value comes from
- Work RVU0.00 · 0%
- Practice expense (office) RVU0.24 · 96%
- Malpractice RVU0.01 · 4%
122
Medicare services in 2024 · #4730 by national volume
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.
86510 compared with similar codes
Office rates for Minnesota, from the same CMS release.
Histoplasma antibody
86698 is an antibody test for Histoplasma capsulatum. It measures circulating antibodies, unlike the skin response tested by 86510.
Compare 86510 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
Minnesota →
Office / nonfacility
$8.35
Facility
Unavailable
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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 86510 in Minnesota.
PPRRVU2026_Oct_nonQPP.csv
10,687
- Code
- 86510
- Physician work
- 0.00
- Practice expense
- 0.24
- Malpractice
- 0.01
GPCI2026.csv
66
- Locality
- Minnesota
- Physician work
- 1.000
- Practice expense
- 1.029
- Malpractice
- 0.296
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.00 | × 1.000 | 0.0000 |
| Practice expense | 0.24 | × 1.029 | 0.2470 |
| Malpractice | 0.01 | × 0.296 | 0.0030 |
| Total RVUs | 0.2499 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Minnesota$8.35
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0 | 1 |
| Practice expense | 0.24 | 1.029 |
| Malpractice | 0.01 | 0.296 |
(0 × 1 + 0.24 × 1.029 + 0.01 × 0.296) × $33.4009 = $8.35
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.
86510 billing questions
How is 86510 different from the tuberculosis skin test code?
86510 is for a histoplasmin antigen skin test. CPT 86580 is for an intradermal tuberculosis skin test.
Does 86510 include interpretation?
No. CMS identifies 86510 as technical-component-only; a separate code covers interpretation when it is performed and documented.
Should modifier 26 be appended for interpretation?
The interpretation is reported with its separate code, not as a professional component of 86510.
What documentation supports reporting 86510?
Record the histoplasmin antigen administration and the clinical reason for the test. Document interpretation separately when performed.
Is a Histoplasma antibody test interchangeable with 86510?
No. 86510 reports a skin test, while CPT 86698 reports an antibody test for Histoplasma capsulatum; they assess different immune responses.
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.
