CPT 36415
Blood draw (venipuncture)
The charge for drawing blood from a vein with a needle. It is billed once per draw, regardless of how many tests are run on the sample.
Billed to Medicare
$21
What providers submitted, on average, for this code in a hospital setting.
Medicare accepted
$9
What Medicare treated as payable. Not a commercial rate or a cash price.
The gap
2.5x
How many times the accepted amount the billed figure was.
National averages from the Centers for Medicare & Medicaid Services, 2024 data, retrieved 2026-09-14. Medicare fee-for-service, physician and practitioner claims only. The hospital's own charge for the same code is separate and is usually higher. Based on 76,459 services.
Of the 10 lab tests codes on this site with CMS figures, this one has the narrowest gap between billed and accepted. The widest is Urinalysis, automated with microscopy at 5.5x.
Where this line goes wrong
Once per visit
Coding rules allow one venipuncture charge per patient per day in almost all circumstances. Multiple 36415 lines on one visit are the most common lab-related duplicate.
Not when you already had a line
Blood drawn from an IV that was already in place is not a venipuncture, and some payers do not allow the charge in that case.
Check it, then ask
- 1
Ask for the itemized bill and the lab results and match every billed test to a result.
- 2
Check for a panel billed alongside one of its own components, or two overlapping panels on the same draw.
- 3
Count the blood draw (36415) lines; one per visit is the norm.
- 4
If self-pay, ask for the hospital's cash price for each test, or compare with an independent lab's published price.
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Codes that travel with this one
People also ask
Why was I charged three times for a blood draw?
Most likely one draw was billed per test rather than per stick. Ask for all but one to be removed, unless the record shows separate draws at different times.
Sources
This page explains a billing code in general terms. It is not a coding, legal or medical opinion about your bill, and the code descriptions are mediloop's own plain-English summaries, not the official CPT descriptors, which are owned by the American Medical Association. Whether a charge was correct depends on the record of your visit and your payer's rules.