CPT code 84630: Zinc test2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Zinc assay quantifies zinc in a submitted specimen and is reported when a laboratory performs a zinc measurement for clinical assessment.
Medicare pays $11.39 for 84630 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
$11.39
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 84630 covers
Code 84630 reports a laboratory assay that measures zinc level. The result supports assessment of a patient's zinc status and is interpreted with clinical findings; it identifies a single analyte, not a multianalyte trace-element panel. Clinical laboratories perform and report the measurement. The code is selected when zinc itself is assayed, rather than another element or a different laboratory analyte. The reported result represents the zinc measurement, not a trace-element panel.
Medicare pays 84630 under 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 $11.39, unchanged from 2020 through 2025. The test is paid only under the CLFS. Report the assay performed.
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 84630
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 84630. 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 84630 with status X (excluded by statute), so the test itself is paid only from the CLFS.
84630 on the lab fee schedule since 2020
84630 · CLFS 2026 Q4 (current)
$11.39
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.
84630 compared with similar tests
- 82525CopperCopper concentration$12.41
- Code 82525 measures copper, not zinc. Select the code for the element the laboratory assays.
- 84202Red-cell protoporphyrinQuantitative assay$14.35
- Code 84202 is for a red-cell protoporphyrin assay, not a zinc measurement. Select 84630 when the laboratory assays zinc.
84630 billing questions
Does 84630 represent a trace-element panel?
No. It identifies an assay of zinc, a single analyte.
How does 84630 differ from a copper assay?
84630 is for measuring zinc; a copper assay measures copper. Select the code for the analyte tested.
How does 84630 differ from code 84202?
84630 measures zinc, while 84202 is for a red-cell protoporphyrin assay.
How does Medicare pay for 84630?
Medicare pays it under the CLFS at one national amount across states and localities, with no office or 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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