CPT code 87350: HBeAg test, immunoassay antigen detection2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Immunoassay detection of hepatitis B e antigen, reported during evaluation or monitoring of hepatitis B infection to help assess viral activity.
Medicare pays $11.53 for 87350 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
$11.53
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 87350 covers
This laboratory test detects hepatitis B e antigen (HBeAg) using an immunoassay and reports a qualitative or semiquantitative result. HBeAg is a marker used in evaluating hepatitis B infection and assessing viral activity and infectivity. Clinicians may order it as part of an evaluation or follow-up for a patient with hepatitis B, alongside other hepatitis B markers and, when appropriate, viral nucleic-acid testing. Clinical laboratories typically perform and report the assay for providers such as primary care clinicians, infectious disease specialists, and hepatologists.
Report 87350 for the HBeAg antigen assay, not for hepatitis B surface antigen, an HBe antibody, or a viral DNA test. Medicare pays the test only under the Clinical Laboratory Fee Schedule (CLFS). The 2026 national CLFS amount is $11.53, unchanged from 2020 through 2025; the same amount applies in every locality, with no office or facility difference. The code is excluded from the physician fee schedule, so there is no separate physician interpretation component payable under that 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 87350
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 87350. 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 87350 with status X (excluded by statute), so the test itself is paid only from the CLFS.
87350 on the lab fee schedule since 2020
87350 · CLFS 2026 Q4 (current)
$11.53
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.
87350 compared with similar tests
- 87340HBsAg testSurface antigen immunoassay$10.33
- 87340 detects hepatitis B surface antigen; 87350 detects hepatitis B e antigen. They represent distinct viral markers.
- 87341HBsAg confirmationNeutralization assay$10.33
- 87341 is a neutralization assay for hepatitis B surface antigen. It does not detect HBeAg.
- 86707Hepatitis B antibodyAnti-HBe$11.57
- 86707 detects antibody to hepatitis B e antigen, whereas 87350 detects the antigen itself.
87350 billing questions
When should 87350 be selected instead of 87340?
Use 87350 for hepatitis B e antigen (HBeAg). Code 87340 is for hepatitis B surface antigen (HBsAg), a different viral marker.
Is 87350 an antigen or antibody test?
It is an immunoassay for HBeAg. The HBe antibody test is reported with 86707.
Does 87350 include hepatitis B viral load testing?
No. It reports HBeAg detection, not measurement of hepatitis B viral DNA; viral nucleic-acid testing is separately identified.
How does Medicare pay for 87350?
Medicare pays 87350 through the CLFS only. Its national amount applies across localities and settings, without an office or facility payment difference.
Is a physician interpretation billed separately under the physician fee schedule?
No separate physician interpretation component is payable under the physician fee schedule for this code.
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
Fee sheets · Coming soon
Put 87350 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
Join the waitlist