CPT code 84583: Urine urobilinogen, semiquantitative assay2026 Medicare lab fee · Clinical Laboratory Fee Schedule
Semiquantitative urine urobilinogen testing reports an approximate concentration used in evaluating bilirubin metabolism, liver disorders, and increased red-cell breakdown.
Medicare pays $6.05 for 84583 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
$6.05
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 84583 covers
Urobilinogen forms as intestinal bacteria break down bilirubin and is partly excreted in urine. This test measures urine urobilinogen and reports an approximate rather than exact concentration. Clinicians may order it when evaluating liver or biliary disorders or increased red-cell breakdown. Clinical laboratories and office-based testing services perform the assay.
Report 84583 for semiquantitative urine urobilinogen testing, rather than a fecal specimen or qualitative or quantitative urine result. The assay provides a semiquantitative result for the urine specimen tested. Medicare pays one national CLFS amount across localities, with no office-versus-facility payment difference. The 2026 national CLFS amount is $6.05, unchanged from 2020 through 2026. Medicare pays the test only through the CLFS, without a separate physician fee schedule payment.
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 84583
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 84583. 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 84583 with status X (excluded by statute), so the test itself is paid only from the CLFS.
84583 on the lab fee schedule since 2020
84583 · CLFS 2026 Q4 (current)
$6.05
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.
84583 compared with similar tests
- 84580Urine urobilinogenTimed urine collection$9.55
- Choose 84583 for a semiquantitative urine result; 84580 is the quantitative urine assay.
- 84578Urine urobilinogenQualitative measurement$4.47
- 84578 reports a qualitative urine urobilinogen test, while 84583 reports a semiquantitative result.
- 84577Stool urobilinogenQuantitative stool specimen$16.80
- 84577 measures urobilinogen in feces. Use 84583 when the specimen tested is urine.
84583 billing questions
When should 84583 be chosen over 84580?
Use 84583 for a semiquantitative urine result. Code 84580 is for quantitative urine urobilinogen testing.
How does 84583 differ from 84578?
84583 identifies a semiquantitative urine result; 84578 is used for a qualitative urine urobilinogen test.
Does 84583 describe a complete urinalysis?
No. It describes measurement of urine urobilinogen, not a complete urinalysis.
What specimen does 84583 represent?
It represents urine. Urobilinogen testing on a fecal specimen is a different service.
How does Medicare pay 84583?
Medicare pays the test through the CLFS at one national amount, without geographic or office-versus-facility variation. It is paid only through the CLFS, without a separate physician fee schedule payment.
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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