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HelpTest Code 24COR Cortisol Free, urine, 24 hr
Additional Codes
| Epic Ordering Code | LAB382 |
| NBS code | LBC00410 |
| Service code | 31868 |
Specimen Requirements
Submit the following:
| Container: |
| 24 Hr Urine Container |
Processing Requirements
Specimen type: 24hr Urine
Volume: Full 24hr urine collection
Specimen Stability
| Specimen Type | Urine |
|---|---|
| Ambient | Not available |
| Refrigerate | 14 days |
| Frozen | 30 days |
Specimen Condition
| Haemolysis | Not applicable |
|---|---|
| Icterus | Not applicable |
| Lipaemia | Not applicable |
| Others | Not applicable |
Methodology
Chemiluminescent Immunoassay
Days and Times Performed
24 hrs, TAT 1 day
Reference Interval
12 – 486 nmol/day
Testing Laboratory
National University Hospital
Clinical Chemistry, 67724346
Useful For
Screening test for Cushing syndrome.
Update
Last updated 31/07/2026
LOINC Code Information
| Urine volume, total | 3167-4 |
|---|---|
| Cortisol free, urine | 15043-3 |
| Cortisol free, urine, 24 hr | 32310-5 |
Alias
24 hours urine
Cortisol, Free