Test ID DCORT 11-Deoxycortisol, Serum
Necessary Information
Indicate if specimen was drawn before or after metyrapone.
Specimen Required
Collection Container/Tube:
Preferred: Red top
Acceptable: Serum gel
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Morning (8 a.m.) specimen is preferred.
2. Centrifuge and aliquot serum into a plastic vial.
Useful For
Diagnostic workup of patients with congenital adrenal hyperplasia
Part of metyrapone testing in the workup of suspected secondary or tertiary adrenal insufficiency
Part of metyrapone testing in the differential diagnostic workup of Cushing syndrome
Testing Algorithm
See Steroid Pathways in Special Instructions.
Special Instructions
Method Name
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Reporting Name
11-Deoxycortisol, SSpecimen Type
SerumSpecimen Minimum Volume
0.4 mL
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Serum | Refrigerated (preferred) | 28 days | |
Ambient | 28 days | ||
Frozen | 28 days |
Reference Values
≤18 years: <344 ng/dL
>18 years: 10-79 ng/dL
For SI unit Reference Values, see https://www.mayocliniclabs.com/order-tests/si-unit-conversion.html
Day(s) Performed
Tuesday
Report Available
3 to 10 daysPerforming Laboratory

Test Classification
This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
82634
LOINC Code Information
Test ID | Test Order Name | Order LOINC Value |
---|---|---|
DCORT | 11-Deoxycortisol, S | 1657-6 |
Result ID | Test Result Name | Result LOINC Value |
---|---|---|
46923 | 11-Deoxycortisol, S | 1657-6 |