CPT code 82365: Stone analysis, infrared method2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Infrared spectroscopy analysis of a calculus is reported when this method is used to examine a stone specimen.
Medicare pays $12.90 for 82365 under the 2026 Clinical Laboratory Fee Schedule: one national amount, the same in every state and setting.
Medicare lab fee · CLFS 2026 Q4
National CLFS amount
$12.90
In effect since Jan 1, 2026. The same amount in every state, payment locality and setting.
- Geographic adjustment
- None
- Office vs facility
- Same
- Since 2020
- Unchanged
- CMS updates
- Quarterly
Medicare pays the lesser of the lab’s charge and this amount. Patients usually owe no Part B deductible or coinsurance for covered clinical lab tests.
On this page 8 sections
What 82365 covers
Code 82365 identifies laboratory analysis of a calculus using infrared spectroscopy. The laboratory analyzes the stone specimen with that method and reports the result. This code distinguishes infrared analysis from calculus analysis reported as qualitative, quantitative, or X-ray analysis. Choose it when infrared spectroscopy is the method used for the calculus analysis, rather than selecting a calculus code solely because the specimen is a stone. The service is analysis of the calculus itself.
Medicare pays 82365 only through the CLFS, at one national amount that applies across states and localities. There is no geographic adjustment or office-versus-facility payment difference. The 2026 national amount is $12.90 and has remained the same each year from 2020 through 2025. The physician fee schedule excludes the test by statute, so Medicare payment for the test is through the CLFS.
This summary was written with AI assistance from CMS Clinical Laboratory Fee Schedule data. Amounts on this page come directly from CMS files.
How Medicare pays 82365
Clinical lab tests aren’t priced like physician services. They’re paid from their own fee schedule, with its own rules. See the whole lab fee schedule.
One national amount
CMS sets a single Clinical Laboratory Fee Schedule amount for 82365. There’s no geographic (GPCI) adjustment, so it pays the same in every state and payment locality.
No office or facility rate
Lab tests aren’t built from relative value units, so there’s no office and facility split: the place of service doesn’t change the CLFS amount.
Updated every quarter
CMS republishes the CLFS each quarter. New tests, often proprietary laboratory analyses (PLA codes), join during the year; existing amounts are updated each January.
Excluded from the physician fee schedule
The physician fee schedule lists 82365 with status X (excluded by statute), so the test itself is paid only from the CLFS.
82365 on the lab fee schedule since 2020
82365 · CLFS 2026 Q4 (current)
$12.90
Unchanged since Jan 1, 2020
27 quarterly CLFS releases on file, first CLFS 2020 Q1. A code missing from a quarter wasn’t on that release.
82365 compared with similar tests
- 82355Stone analysisQualitative analysis$11.58
- 82355 describes qualitative calculus analysis. Use 82365 when infrared spectroscopy is the documented analysis method.
- 82360Stone analysisQuantitative chemical analysis$12.87
- 82360 describes quantitative calculus analysis. Use 82365 when the calculus is analyzed by infrared spectroscopy.
- 82370Stone analysisX-ray diffraction$12.52
- 82370 describes X-ray analysis of a calculus. Choose 82365 when infrared spectroscopy is the analysis method.
82365 billing questions
What does 82365 report?
It reports laboratory analysis of a calculus using infrared spectroscopy.
How is 82365 distinguished from other calculus analysis codes?
Choose 82365 when infrared spectroscopy is the analysis method. The neighboring codes describe qualitative, quantitative, or X-ray calculus analysis.
Which Medicare fee schedule pays 82365?
Medicare pays the test only through the CLFS. The physician fee schedule excludes it by statute.
Does Medicare payment vary by locality or setting?
No. The CLFS uses one national amount across states and localities, with no geographic or office-versus-facility adjustment.
What method supports reporting 82365?
Infrared spectroscopy must be the method used to analyze the calculus.
Where this amount comes from
FeeBase reads lab amounts directly from the CMS Clinical Laboratory Fee Schedule file for the quarter: one row per code, with its payment indicator and national amount. Contractor-priced tests are labeled, never given a made-up amount. Amounts are Medicare payment limits, not a patient’s bill or a commercial rate.
CMS CLFS 2026 Q4 · effective Oct 1, 2026 through the day before Jan 1, 2027
Show the CMS file line behind this amount
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