Search our extensive Laboratory Test Directory to find test codes, ordering recommendations, specimen stability information, Test Fact Sheets, and more.
Expected turnaround time for a result, beginning when ARUP has received the specimen.
2-7 days
Reference Interval
Normal range/expected value(s) for a specific disease state. May also include abnormal ranges.
Negative
Interpretive Data
May include disease information, patient result explanation, recommendations, or details of testing.
The 21-Hydroxylase Autoantibody assay is intended for the qualitative determination of autoantibodies to steroid 21-hydroxylase in human serum. A positive result is indicative of primary adrenal insufficiency (Addison disease). Results should be interpreted within the context of clinical symptoms, including functional adrenal testing. Males with adrenal insufficiency and negative results for 21-hydroxylase autoantibodies should be screened for X-Linked Adrenoleukodystrophy (X-ALD) by ordering Very Long-Chain Branched Fatty Acids in Plasma (ARUP Test Code 2004250).
Compliance Category
FDA
Note
Additional information related to the test.
Hotline History
N/A
CPT Codes
The American Medical Association Current Procedural Terminology (CPT) codes published in ARUP's Laboratory Test Directory are provided for informational purposes only. The codes reflect our interpretation of CPT coding requirements based upon AMA guidelines published annually. CPT codes are provided only as guidance to assist clients with billing. ARUP strongly recommends that clients confirm CPT codes with their Medicare administrative contractor, as requirements may differ. CPT coding is the sole responsibility of the billing party. ARUP Laboratories assumes no responsibility for billing errors due to reliance on the CPT codes published.
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Connect Sign In
