CPT code 82652: Vitamin D, 1,25-dihydroxy form2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Measures 1,25-dihydroxyvitamin D, the active vitamin D metabolite, when clinicians evaluate selected calcium, kidney, or vitamin D metabolism disorders.
Medicare pays $38.50 for 82652 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
$38.50
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 82652 covers
This assay measures 1,25-dihydroxyvitamin D, the active form of vitamin D, typically in a blood specimen. Clinicians may order it when evaluating calcium abnormalities or disorders affecting vitamin D activation, including selected kidney and granulomatous conditions. It is not the routine measure of vitamin D stores; that role belongs to the 25-hydroxyvitamin D test. Clinical laboratories perform and report the result for the ordering clinician, often alongside other tests used to assess calcium and mineral metabolism.
Report this code for the 1,25-dihydroxyvitamin D assay performed. Medicare pays it only through the CLFS; the 2026 national amount is $38.50 and has remained unchanged since 2020. The same CLFS amount applies across localities and in office and facility settings. The physician fee schedule does not pay separately for 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 82652
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 82652. 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 82652 with status X (excluded by statute), so the test itself is paid only from the CLFS.
82652 on the lab fee schedule since 2020
82652 · CLFS 2026 Q4 (current)
$38.50
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.
82652 compared with similar tests
- 82306Vitamin D test25-hydroxy level$29.60
- Use 82306 for 25-hydroxyvitamin D, the usual measure of vitamin D stores. Use 82652 when the clinical question concerns the active 1,25-dihydroxy form.
- 83970Parathyroid hormoneBlood hormone level$41.28
- Code 83970 measures intact parathyroid hormone, not a vitamin D metabolite. The two assays may be ordered together but represent separate measurements.
82652 billing questions
How does this test differ from the 25-hydroxyvitamin D test?
This code measures the active 1,25-dihydroxy form, while 82306 measures 25-hydroxyvitamin D, commonly used to assess vitamin D stores. Choose the assay that matches the clinician’s diagnostic question.
Is a physician interpretation billed separately?
Medicare pays this test through the CLFS only. The physician fee schedule does not provide separate payment for it.
What specimen is typically tested?
The assay is typically performed on a blood specimen.
When might this test be ordered with a parathyroid hormone test?
Clinicians may evaluate 1,25-dihydroxyvitamin D alongside intact parathyroid hormone when investigating calcium or mineral metabolism abnormalities. The tests measure different substances and are reported separately when both are performed.
Does the CLFS amount vary by locality or setting?
No. Medicare uses one national amount for this code across localities, with no office-versus-facility 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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