CPT code 84307: Somatostatin, hormone level2026 Medicare lab fee · Clinical Laboratory Fee Schedule
A laboratory reports this assay when measuring somatostatin, a hormone that inhibits growth hormone release.
Medicare pays $18.28 for 84307 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
$18.28
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 7 sections
What 84307 covers
84307 identifies a laboratory measurement of somatostatin, the hormone that inhibits growth hormone release. It reports the somatostatin analyte itself, rather than growth hormone or somatomedin. Laboratories report the assay when a clinician requests measurement of somatostatin; code selection follows the analyte measured. The reported result is a somatostatin level. This distinction matters when selecting among hormone assays because the substance measured determines which test is represented.
Medicare pays 84307 only through the CLFS. The 2026 national CLFS amount is $18.28, and the amount has remained unchanged from 2020 through 2026. One national amount applies in every state and locality, without geographic adjustment or an office-versus-facility payment difference. The test is excluded from the physician fee schedule. Report the code for the somatostatin assay rather than a code for a different analyte.
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 84307
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 84307. 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 84307 with status X (excluded by statute), so the test itself is paid only from the CLFS.
84307 on the lab fee schedule since 2020
84307 · CLFS 2026 Q4 (current)
$18.28
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.
84307 compared with similar tests
- 84305IGF-1 testSomatomedin C$21.26
- 84305 measures somatomedin, while 84307 measures somatostatin. Select the code for the analyte the laboratory measures.
- 83003Growth hormoneHuman growth hormone level$16.67
- 83003 measures growth hormone itself; 84307 measures somatostatin, a hormone that inhibits growth hormone release.
84307 billing questions
What does 84307 measure?
It measures somatostatin, a hormone that inhibits growth hormone release.
How does 84307 differ from 84305?
84307 measures somatostatin; 84305 measures somatomedin. Select the code for the analyte measured.
Does 84307 represent a growth hormone assay?
No. It represents measurement of somatostatin, not growth hormone.
How does Medicare pay for 84307?
Medicare pays it through the CLFS using one national amount across states and localities, with no office-versus-facility difference.
Is 84307 paid under the physician fee schedule?
No. The test is paid only through the CLFS.
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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