Cortisol, Free, 24 Hr Urine [11280X]

Test Code

CPT Codes

Preferred Specimen
2 mL 24-Hour Urine
Instructions: Instruction: Collect 24-hour urine without
preservative (preferred). Record 24-hour urine volume on
test request form and urine vial.
24-hour urine specimens, collected with the following
preservatives, are acceptable:
25 mL 6N HCl;
10 mL conc. Glacial Acetic Acid;
10 g Boric Acid.

Minimum Volume
0.8 mL

Other Acceptable Specimens
2 mL 24-Hour Urine (Min0.8 mL)
Urine Container, leak-proof (25 mL 6N HCl); Refrigerated;

2 mL 24-Hour Urine (Min0.8 mL)
Urine Container, leak-proof (10mL conc glacial acetic
acid); Refrigerated;
2 mL 24-Hour Urine (Min0.8 mL)
Urine Container, leak-proof (10 g boric acid);

Transport Container
Urine Container, leak-proof

Transport Temperature

Specimen Stability
Room Temperature: 48 hours
Refrigerated: 1 week
Frozen: 5 months

Liquid Chromatography, Tandem Mass Spectrometry (LC/MS/MS)

Setup Schedule
Tuesday-Saturday Morning
Report available: 2 Days

Reference Range
Accompanies report

Clinical Significance
Urinary Free Cortisol is useful in the detection of patients with Cushing's syndrome for whom Free Cortisol concentrations are elevated.

Performing Laboratory
Quest Diagnostics Nichols Inst San Juan Capistrano 33608 Ortega Highway San Juan Capistrano, CA 92690-6130

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.