Progesterone, 17-OH (17-Hydroxyprogesterone)
Fasting RequiredWhat This Test Measures
Elevated in congenital adrenal hyperplasia (CAH); also measured in adrenal function assessment.
Preparation
NOTE: 17-OH Progesterone is NOT the same as progesterone — it's an adrenal/ovarian precursor used primarily to screen for congenital adrenal hyperplasia (CAH). For cycling women, draw in the follicular phase (day 3) for CAH screening. Levels vary by cycle phase, time of day (highest AM), and stress. The BHRT community notes this test should not be confused with standard progesterone monitoring. These notes reflect common practices in endocrine patient communities.
Reflects common practices in thyroid, BHRT, and functional medicine communities. This may differ from standard clinical guidelines. Not medical advice — always discuss with your provider.
General guidelines only. Requirements vary by lab and individual. Confirm with your provider before adjusting any medications.
Turnaround Time
Varies by lab
Clinical Notes
Newborn screen for CAH; adults tested for late-onset CAH
ICD-10 Codes
Common diagnosis codes associated with this test. Codes are assigned by your provider.
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Lab Codes
Proprietary codes used by each lab for this test.
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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.