Geisinger Medical Laboratories Test Catalog

Order Display Name: Geisinger Epic Procedure Code Or ID CPT Code:  


Geisinger Epic Procedure Code: LAB1492             Geisinger Epic ID: 15007

Specimen type:
Random urine
Preferred collection container:
Specimen required:
10 mL random urine with 6N HCl, submitted in a plastic, screw-cap container; minimum 5 mL.
Special notes:
This test needs immediate acidification and can only be collected at Hospital sites.
Patient preparation:
Patient should avoid food high in indoles (avocado, banana, tomato, plum, walnut, pineapple, and eggplant).

Specimen processing instructions:
After urine collection, add 6N HCl to maintain a pH below 3. Urine without preservative is acceptable if pH is below 6 and the sample is shipped frozen. Record patients age on test request form and urine vial. 
Transport temperature:
Preserved: Refrigerated. Unpreserved: Frozen
Specimen stability:
Preserved: Room temperature: 7 days. Refrigerated: 30 days. Frozen: 30 days.
Unpreserved: Frozen: 30 days
Rejection criteria:
pH >3.0 received unfrozen

Additional information:
Beta Blockers, Atenolol, Bromocriptine, Bronchodilators, Clonidine, Digoxin, Isoniazid, L-Dopa, Labetelol, Methyldopa, Monoamine Oxidase Inhibitors, Nitroglycerin, Sympathomimetic Amines, Phenobarbital, Phenothiazines, Phentolamine, Reserprine, Salicylates, Tricyclic Antidepressants
CPT code(s):
83497, 82570
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
5-Hydroxyindoleacetate/Creatinine, Random Urine
High Performance Liquid Chromatography (HPLC)
Electrochemical detection
5-HIAA, Carcinoid Screen, Serotonin 5-HIAA random urine, HIAAR
Quest test code 1648
Clinical significance:
Values above 10 mg/24 hrs occur in carcinoid syndrome. Slight elevations also occur in nontropical sprue and after reserpine administration.

Performing Locations

Quest Diagnostics

Technical Lead: Michael Weaver    
Frequency: Monday - Friday morning    
Performed STAT? No
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