82438
No office rateAssay other fluid chlorides
89230 reports collecting the sweat specimen; 82438 reports chloride measurement from a nonblood source. Report each service performed.
On this page
CMS RVU26D · Effective 2026-10-01
89230 Sweat collection Medicare reimbursement rates in Idaho
Reports collection of a sweat specimen, commonly for sweat chloride testing during evaluation for cystic fibrosis; laboratory analysis is coded separately. Compare 89230 office and facility rates across CMS payment localities in Idaho.
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 89230 in Idaho?
Idaho 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
$2.62
1 of 1 localities have a supported rate.
Payment area: Idaho
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.
Laboratory
About 89230: Sweat specimen collection for testing
Reports collection of a sweat specimen, commonly for sweat chloride testing during evaluation for cystic fibrosis; laboratory analysis is coded separately.
This service covers obtaining a sweat specimen for laboratory testing, commonly sweat chloride analysis when cystic fibrosis is being evaluated. Trained laboratory personnel typically stimulate sweating with pilocarpine iontophoresis and collect the resulting sweat on an absorbent collector or in a collection device. The collection is performed in a clinical or laboratory setting equipped to obtain and handle the specimen for analysis.
Report 89230 for the collection procedure, not for measuring the specimen’s chloride content or interpreting the result. Documentation should identify the reason for testing, the collection method, and the specimen obtained and sent for analysis. CMS classifies this as a technical-component-only code; a separate code covers interpretation. The collection code therefore represents the technical service, while interpretation is reported separately under the applicable code.
CMS billing rules for 89230
- 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) RVU0.08 · 89%
- Malpractice RVU0.01 · 11%
31
Medicare services in 2024 · #5660 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.
89230 compared with similar codes
Office rates for Idaho, from the same CMS release.
$19.21
89220 concerns sputum specimen collection. It does not describe collecting sweat for sweat testing.
Compare 89230 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
Idaho →
Office / nonfacility
$2.62
Facility
Unavailable
Need rates for a whole code list?
Fee-sheet and API access are in early access. Tell us which codes and locations your team needs.
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 89230 in Idaho.
PPRRVU2026_Oct_nonQPP.csv
11,344
- Code
- 89230
- Physician work
- 0.00
- Practice expense
- 0.08
- Malpractice
- 0.01
GPCI2026.csv
47
- Locality
- Idaho
- Physician work
- 1.000
- Practice expense
- 0.920
- Malpractice
- 0.473
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.00 | × 1.000 | 0.0000 |
| Practice expense | 0.08 | × 0.920 | 0.0736 |
| Malpractice | 0.01 | × 0.473 | 0.0047 |
| Total RVUs | 0.0783 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Idaho$2.62
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0 | 1 |
| Practice expense | 0.08 | 0.92 |
| Malpractice | 0.01 | 0.473 |
(0 × 1 + 0.08 × 0.92 + 0.01 × 0.473) × $33.4009 = $2.62
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.
89230 billing questions
Is 89230 the sweat chloride test itself?
No. It reports collecting the sweat specimen. The laboratory analysis, such as chloride measurement, is a separate service.
Can 89230 be reported with a sweat chloride assay?
Yes, when both the collection and the laboratory assay are performed and documented. CPT 82438 is used for chloride from a source other than blood.
Does 89230 include interpretation?
No. CMS identifies 89230 as technical-component-only and states that a separate code covers interpretation.
Should modifier TC be appended?
CMS classifies the code itself as technical-component-only. Report the separate interpretation service under its applicable code rather than treating 89230 as the interpretation.
What documentation supports reporting 89230?
Record the clinical reason for the sweat test, how the specimen was collected, and that it was obtained for laboratory analysis.
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.
11,34189160,,Exam feces for meat fibers,X,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
11,34289190,,Nasal smear for eosinophils,X,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
11,34389220,,Sputum specimen collection,A,,0.00,0.62,,0.62,NA,0.01,0.63,0.63,3,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,34489230,,Collect sweat for test,A,,0.00,0.08,,0.08,NA,0.01,0.09,0.09,3,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,34589240,,Unlisted misc path test,C,,0.00,0.00,,0.00,,0.00,0.00,0.00,0,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,34689250,,Cultr oocyte/embryo <4 days,X,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
11,34789251,,Cultr oocyte/embryo <4 days,X,,0.00,0.00,,0.00,,0.00,0.00,0.00,9,XXX,0.00,0.00,0.00,9,9,9,9,9,9,,33.4009,09,0,99,0.00,0.00,0.00
4410212,GA,01,ATLANTA,1.003,1.016,1.201
4510212,GA,99,REST OF GEORGIA,1.000,0.892,1.192
4601212,HI,01,"HAWAII, GUAM",1.000,1.137,0.579
4702202,ID,00,IDAHO,1.000,0.920,0.473
4806102,IL,16,CHICAGO,1.007,1.005,2.295
4906102,IL,12,EAST ST. LOUIS,1.000,0.920,2.014
5006102,IL,15,SUBURBAN CHICAGO,1.007,1.027,1.772