CPT code 86023: Platelet Ig assay, platelet-associated immunoglobulin2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Measures immunoglobulin associated with platelets and may be reported during evaluation of thrombocytopenia when an immune-mediated cause is considered.
Medicare pays $12.46 for 86023 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
$12.46
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 86023 covers
Code 86023 represents antibody identification testing that measures immunoglobulin associated with platelets. It may be used in evaluating thrombocytopenia when an immune-mediated cause is considered. The result is interpreted in the context of the platelet count and clinical findings; it is distinct from a general platelet-antibody test. Clinical laboratories perform and report this assay for clinicians evaluating platelet disorders.
Report 86023 when the assay performed measures platelet-associated immunoglobulin; distinguish it from 86022 based on the assay, not solely on the general platelet-antibody topic. Medicare pays the test through the CLFS at one national amount per code, the same across states, localities, and office or facility settings. The 2026 national CLFS amount is $12.46, unchanged since 2020. The test is paid only through the CLFS, not the physician fee schedule.
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 86023
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 86023. 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 86023 with status X (excluded by statute), so the test itself is paid only from the CLFS.
86023 on the lab fee schedule since 2020
86023 · CLFS 2026 Q4 (current)
$12.46
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.
86023 compared with similar tests
- 86022Platelet antibodiesAntibody identification$18.37
- 86023 identifies a platelet-associated immunoglobulin assay. Use 86022 when the test performed is platelet antibody testing rather than the platelet-associated immunoglobulin assay.
- 86021WBC antibodiesAntibody identification$15.05
- 86021 concerns white blood cell antibody identification. Code 86023 concerns immunoglobulin associated with platelets.
86023 billing questions
When should I report 86023 instead of 86022?
Use 86023 for an assay of immunoglobulin associated with platelets. Code 86022 describes platelet antibody testing; select the code that matches the assay performed.
What does this assay evaluate?
It evaluates immunoglobulin associated with platelets. It may be part of a thrombocytopenia evaluation when an immune-mediated cause is considered.
Does 86023 include a separate physician interpretation?
The test is paid only through the CLFS and has no separately payable physician interpretation component under the physician fee schedule.
How does Medicare pay for 86023?
Medicare pays one national CLFS amount per code, with the same payment across localities and office or facility settings.
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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