CPT code 82575: Creatinine clearance, timed urine and serum2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Measures creatinine clearance from timed urine and a blood sample to assess kidney filtration when a clinician needs a functional kidney assessment.
Medicare pays $9.46 for 82575 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
$9.46
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 82575 covers
Creatinine clearance estimates how effectively the kidneys filter creatinine from the blood. A clinical laboratory typically measures creatinine in a timed urine collection and a paired blood specimen, then uses the results and urine collection details to determine clearance. Clinicians may order it when assessing kidney function, including in nephrology or primary care settings.
Report 82575 for the creatinine clearance determination, rather than for a standalone serum or urine creatinine assay. The clinical record should support the collection and paired measurements used to calculate clearance. Medicare pays this test only under the CLFS; the 2026 national amount is $9.46 and has remained unchanged since 2020. The same CLFS amount applies across states and localities, without geographic or office-versus-facility adjustment. The physician fee schedule does not separately pay 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 82575
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 82575. 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 82575 with status X (excluded by statute), so the test itself is paid only from the CLFS.
82575 on the lab fee schedule since 2020
82575 · CLFS 2026 Q4 (current)
$9.46
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.
82575 compared with similar tests
- 82565CreatinineBlood specimen$5.12
- Use 82565 for a serum creatinine assay alone. Use 82575 when the laboratory determines creatinine clearance using timed urine and paired blood measurements.
- 82570Urine creatinineUrine specimen$5.18
- 82570 is a urine creatinine assay; 82575 represents the clearance determination based on timed urine and blood results.
- 80048Basic metabolic panelTotal calcium$8.46
- 80048 reports a basic metabolic panel, including a serum creatinine measurement. It does not represent a timed urine creatinine clearance determination.
82575 billing questions
When should 82575 be reported instead of 82565?
Report 82575 for a creatinine clearance determination based on timed urine and paired blood measurements. Code 82565 describes a serum creatinine assay alone.
How does 82575 differ from 82570?
82575 represents the clearance determination using timed urine and blood results. 82570 is an assay of urine creatinine, without the clearance calculation.
What documentation supports 82575?
Keep documentation of the timed urine collection, the paired blood measurement, and the results or calculation supporting the clearance determination.
Does Medicare pay 82575 under the physician fee schedule?
No. Medicare payment for this test is through the CLFS, with one national amount applicable across localities and 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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