HIV Ag/Ab 4th Generation (Combo)
What This Test Measures
Detects both HIV p24 antigen and HIV-1/2 antibodies; earliest available HIV test.
Preparation
General guidelines only. Requirements vary by lab and individual. Confirm with your provider before adjusting any medications.
Turnaround Time
Varies by lab
Clinical Notes
Window period ~18 days vs ~22 days for 3rd gen; FDA-recommended standard
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.