Cortisol, 24-Hour Urine Free

CPT: 82530
Hormones

What This Test Measures

Collection for cortisol; gold standard for Cushing's syndrome screening.

Preparation

No fasting required
Timing matters for cortisol. AM draws should be between 7–9 AM; PM draws between 3–5 PM. Stress, poor sleep, illness, and recent exercise can all elevate cortisol. Avoid intense exercise before drawing.

General guidelines only. Requirements vary by lab and individual. Confirm with your provider before adjusting any medications.

Turnaround Time

Varies by lab

Clinical Notes

Requires 24-hr urine collection; more sensitive for Cushing's than single serum cortisol

ICD-10 Codes

Common diagnosis codes associated with this test. Codes are assigned by your provider.

E24.9Cushing syndrome, unspecified
E27.40Adrenocortical insufficiency, unspecified
E27.49Other adrenocortical insufficiency
R53.83Other fatigue

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Lab Codes

Proprietary codes used by each lab for this test.

Quest Diagnostics
14534(order_code)

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CPT: 82024

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For informational purposes only

This page is for educational and research purposes only and does not constitute medical advice, diagnosis, or treatment recommendations. ICD-10 and CPT codes are assigned by your healthcare provider. Always consult a qualified healthcare provider before ordering any lab test or making decisions about your health.