CPT code 82955: G6PD assay, quantitative enzyme activity2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Quantitative red-cell G6PD enzyme testing helps evaluate suspected G6PD deficiency and hemolysis, including assessment before selected oxidant medications.
Medicare pays $9.70 for 82955 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
$9.70
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 82955 covers
Quantitative G6PD testing measures glucose-6-phosphate dehydrogenase activity in red blood cells, typically from a blood specimen. Clinicians order it when inherited G6PD deficiency is suspected, including during evaluation of hemolysis or before selected medicines that can trigger oxidative red-cell injury, such as rasburicase or primaquine. Clinical laboratories perform the assay; clinicians interpret the result alongside the patient’s history and blood findings. Recent transfusion or an acute hemolytic episode can affect enzyme activity results, so timing and clinical context matter.
Report 82955 for the quantitative enzyme assay rather than a qualitative G6PD screen. Medicare pays for the test only under the CLFS, at one nationally set amount across localities and care settings, with no geographic or office/facility adjustment. The 2026 national CLFS amount is $9.70, unchanged since 2020. The test is excluded from the physician fee schedule by statute.
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 82955
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 82955. 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 82955 with status X (excluded by statute), so the test itself is paid only from the CLFS.
82955 on the lab fee schedule since 2020
82955 · CLFS 2026 Q4 (current)
$9.70
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.
82955 compared with similar tests
- 82960G6PD screenScreening, not enzyme assay$6.05
- 82955 measures G6PD activity quantitatively; 82960 is used for qualitative G6PD testing.
- 82947Blood glucoseQuantitative, not reagent strip$3.93
- 82947 measures glucose in blood. It does not measure G6PD enzyme activity.
- 82962Meter glucoseFDA home-use cleared instrument$3.28
- 82962 is a blood glucose test, commonly performed with a glucose meter; 82955 measures red-cell G6PD enzyme activity.
82955 billing questions
When should 82955 be used instead of 82960?
Use 82955 when the laboratory performs a quantitative measurement of G6PD activity. Use 82960 for a qualitative G6PD test.
Is 82955 a blood glucose test?
No. It measures red-cell G6PD enzyme activity. Codes 82947 and 82962 describe blood glucose testing.
Can a CBC or reticulocyte count be reported with 82955?
They are distinct tests and may be reported when separately ordered and performed as part of an anemia or hemolysis evaluation. A CBC assesses blood cell counts, while a reticulocyte count assesses immature red cells.
How does Medicare pay for 82955?
Medicare pays the test under the CLFS only. The national amount is the same across localities and care 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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