CPT code 82232: Beta-2 microglobulin, protein level assay2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Measures beta-2 microglobulin, a protein used in evaluating plasma-cell and lymphoid disorders and renal function.
Medicare pays $16.18 for 82232 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
$16.18
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 7 sections
What 82232 covers
Beta-2 microglobulin testing measures the concentration of a small protein. Clinicians use the result when evaluating or monitoring plasma-cell disorders, including multiple myeloma, and lymphoid malignancies; it can also contribute to assessment of renal function. Results are interpreted alongside other clinical and laboratory findings. Clinical laboratories perform the assay for tests ordered by clinicians caring for patients with hematologic or renal conditions.
Report 82232 for the beta-2 microglobulin assay; the code identifies this analyte rather than a beta-amyloid assay. Medicare pays the test through the CLFS at one national amount that applies in every state and locality, with no office-versus-facility payment difference. The 2026 national CLFS amount is $16.18, unchanged from 2020 through 2026. Payment is only through the CLFS; the physician fee schedule does not pay this test.
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 82232
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 82232. 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 82232 with status X (excluded by statute), so the test itself is paid only from the CLFS.
82232 on the lab fee schedule since 2020
82232 · CLFS 2026 Q4 (current)
$16.18
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.
82232 compared with similar tests
- 82233Beta-amyloidAβ40 peptide$128.92
- This code measures beta-amyloid 1-40, not beta-2 microglobulin. Select it when the beta-amyloid 1-40 analyte is tested.
- 82234Amyloid beta1-42 analyte$128.92
- This code measures beta-amyloid 1-42, a different analyte from beta-2 microglobulin. Select it when the beta-amyloid 1-42 analyte is tested.
82232 billing questions
What does 82232 measure?
It measures beta-2 microglobulin. Clinicians may use the result when evaluating plasma-cell or lymphoid disorders and renal function.
How does 82232 differ from beta-amyloid testing?
Code 82232 is for beta-2 microglobulin. Codes 82233 and 82234 are for beta-amyloid 1-40 and 1-42, respectively.
How does Medicare pay for 82232?
Medicare pays the test through the CLFS at one national amount that applies across localities.
Does payment differ between office and facility settings?
No. The CLFS amount is the same across settings, with no office-versus-facility payment difference.
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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