CPT code 83698: Lp-PLA2 assay, enzyme level2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Measures Lp-PLA2, an enzyme associated with lipoproteins, as one marker in the assessment of atherosclerotic cardiovascular risk.
Medicare pays $46.31 for 83698 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
$46.31
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 83698 covers
83698 measures lipoprotein-associated phospholipase A2 (Lp-PLA2), an enzyme associated with lipoproteins and vascular inflammation. Clinicians may use the level as one marker when evaluating atherosclerotic cardiovascular risk alongside the broader clinical picture. Clinical laboratories perform and report the assay for ordering clinicians.
Report 83698 for measurement of the Lp-PLA2 level; 83695 measures the distinct analyte lipoprotein(a). Medicare pays 83698 only through the CLFS, using one national amount in every state and locality, with no office or facility adjustment. The 2026 national CLFS amount is $46.31, unchanged since 2020. There is no separate physician fee schedule payment 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 83698
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 83698. 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 83698 with status X (excluded by statute), so the test itself is paid only from the CLFS.
83698 on the lab fee schedule since 2020
83698 · CLFS 2026 Q4 (current)
$46.31
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.
83698 compared with similar tests
- 83695Lipoprotein(a)Measured lipoprotein(a) level$14.32
- Choose 83698 for the Lp-PLA2 enzyme assay; choose 83695 for measurement of lipoprotein(a). These are different analytes, not interchangeable tests.
- 86141High-sensitivity CRPHigh-sensitivity measurement$12.95
- 86141 measures high-sensitivity C-reactive protein, a separate inflammatory marker rather than Lp-PLA2.
- 80061Lipid panelCholesterol and triglycerides$13.39
- 80061 reports a lipid panel measuring lipid fractions, not the Lp-PLA2 enzyme level.
83698 billing questions
What does 83698 measure?
It measures the level of lipoprotein-associated phospholipase A2 (Lp-PLA2), an enzyme associated with lipoproteins.
How is 83698 different from 83695?
83698 measures Lp-PLA2. 83695 measures lipoprotein(a), a different cardiovascular risk marker.
Is a physician interpretation separately payable?
No. Medicare pays 83698 only through the CLFS, with no separate physician fee schedule payment for the test.
How does Medicare pay 83698?
The CLFS uses one national amount for the code across states and localities, without an office or facility adjustment.
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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