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Test ID: HTR2O    
Serotonin Receptor Genotype (HTR2A and HTR2C), Saliva

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Test Classification Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer's instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR), Investigation Use Only (IUO) product, or a Research Use Only (RUO) product.

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Medical Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

81479-Unlisted molecular pathology procedure

LOINC® Code Information Provides guidance in determining the Logical Observation Identifiers Names and Codes (LOINC) values for the order and result codes of this test.

Test IDTest Order NameOrder LOINC Code
HTR2OSerotonin Receptor Genotype (HTR2A and HTR2C), SalivaIn Process


Result IDTest Result NameResult LOINC Code
32936HTR2A -1438G>AIn Process
32937HTR2A 74C>AIn Process
32938HTR2A 102 T>CIn Process
32939HTR2A IVS2 A>GIn Process
32940HTR2A 1354 C>TIn Process
32941HTR2C -759 C>T75732-8
32942HTR2C 796 G>C75730-2
32943Reviewed ByNo LOINC Needed
32944HTR2 GenotypeIn Process

LOINC and CPT codes are provided by the performing laboratory.