On your lab requisition: Quest “Micronutrient, Vitamin B6, Plasma” (test code 10193)
The short answer
Measures pyridoxine levels — important for brain function, mood, and amino acid metabolism, measured from a standard blood draw. At TestWell it costs $51.99 plus a $6 lab processing fee, needs no fasting, and results post in 3–5 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest or Labcorp.
Hospital Lab
$160
cash pay
Other Labs
$69
+ lab fees
TestWell
$51.99
+ $6 lab processing fee
Vitamin B6 (pyridoxine) is involved in over 100 enzyme reactions in the body, primarily related to protein metabolism, neurotransmitter synthesis, and immune function. Adequate B6 is critical for producing serotonin, dopamine, and GABA — key brain chemicals that regulate mood and sleep. Both deficiency and excessive supplementation can cause peripheral neuropathy, making monitoring important for those taking B6 supplements.
Vitamin and nutrient testing identifies deficiencies that can drive fatigue, immune dysfunction, neurological symptoms, and long-term disease risk — and confirms that supplementation is working.
Anyone with restrictive diets (vegan, low-fat, low-carb), malabsorption conditions, fatigue, hair loss, mood changes, or currently supplementing and wanting to verify dosing.
Sample Type
Blood draw
Fasting
Not required
Results In
3–5 business days
Performed At
Quest or Labcorp
Your Vitamin B6 (Pyridoxine) results will include values for each of the 1 biomarker tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 3–5 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you. Already have results? Analyze them with your AI assistant against our physician-reviewed ranges.
No fasting required. If taking B6 supplements, note the dosage for your provider.
A Vitamin B6 (Pyridoxine) test costs $51.99 at TestWell — $57.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $160.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $51.99 | $57.99 | Includes the one $6 lab processing fee, charged once per order |
| TestWell (drawn at BioReference — New York & New Jersey) | $51.99 | $57.99 | New York and New Jersey orders route to BioReference; Quest Health and Labcorp OnDemand don't take self-ordered draws in those states |
| Hospital outpatient lab, self-pay (typical) | $160.00 | $160.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 10193 · Labcorp test no. 004655 · BioReference code 0296-4. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
Compare more: Quest Diagnostics price list · Labcorp price list · Quest vs Labcorp · Lab test price checker
Most Vitamin B6 (Pyridoxine) results are available in 3–5 business days after your specimen arrives at the lab. You'll get an email the moment results are ready, with everything viewable in your TestWell portal.
Blood draw. Sample is collected at a Quest, Labcorp, or BioReference patient service center near you, or via at-home phlebotomy where available.
On TestWell, the Vitamin B6 (Pyridoxine) is $51.99. Quest Direct lists comparable tests at $69. Walk-in hospital labs typically bill $160 or more without insurance. Insurance is not required — pay one all-in price.
No fasting required for the Vitamin B6 (Pyridoxine). No fasting required. If taking B6 supplements, note the dosage for your provider.
The Vitamin B6 (Pyridoxine) is available at Quest and Labcorp patient service centers nationwide. Order online at TestWell, pick your preferred lab, and we'll generate a digital requisition for the location closest to you.
The CPT code for a Vitamin B6 (Pyridoxine) test is 84207. You can order it from TestWell for $51.99 — no doctor's visit or insurance required, with results in 3–5 business days.
The Vitamin B6 (Pyridoxine) test is Quest Diagnostics test code 10193 ("Micronutrient, Vitamin B6, Plasma"), Labcorp test number 004655, BioReference code 0296-4 (CPT 84207). TestWell orders it under those codes for $51.99 at Quest, Labcorp or BioReference — no doctor's visit or insurance required, results in 3–5 business days. Codes verified against the labs' catalogs in 2026.
Medically reviewed by Youmna DiStefano, MD · Last reviewed September 2026
TestWell Price
$51.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
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Vitamin B6 (Pyridoxine)
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