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Test ID: FXAB    
Xylose Absorption Test (Adult 25g dose)

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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.


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

Result IDReporting NameLOINC Code
Z2659Total VolumeIn Process
Z2660DosageIn Process
Z2661Serum Xylose at 2 hoursIn Process
Z2662Xylose Excretion, g/5 hrIn Process
Z2663Xylose Excretion, % Dose 5 hrIn Process

LOINC and CPT codes are provided by the performing laboratory.