17-Hydroxycorticosteroids with Creatinine, 24-Hour Urine

Test Code

CPT Codes
83491, 82570

CPT code 81050 may be added at an additional charge for volume measurement

Preferred Specimen
20 mL of a 24-hour urine (see instructions)

Minimum Volume
10 mL

Collect urine with 10 g Boric acid (preferred) or 25 mL of 50% acetic acid or 30 mL of 6N Hcl acid (acceptable). Keep urine refrigerated during collection.
Mix well and record the total volume on the test request form and urine container. Specimen required is 20 mL of 24 hrs urine preserved in 10 g Boric acid (preferred) or 25 mL of 50% acetic acid or 30 mL of 6N Hcl acid (acceptable) in a plastic leak-proof urine container.

Transport Temperature
Refrigerated (cold packs)

Specimen Stability
Room temperature: 8 hours
Refrigerated: 7 days
Frozen: 30 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens exceeding stability limit • Specimens without preservatives

Colorimetric with Porter-Silber Reaction

Setup Schedule

Set up: Tues, Fri; Report available: 1-5 days

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.