24 Hour Urine Test For Kidney Stones Cpt Code. 82131 cystine. Cystine kidney stones account for approximately 1 3 of all kidney stones.
Specimen ph should be between 4 5 and 8 and will stay in this range if kept refrigerated. Order code order code name order loinc result code result code name uofm result loinc. Hyperoxaluria is not uncommon in subjects with malabsorption.
Collect urine for 24 hours.
Specimens with ph 8 may indicate bacterial contamination and testing will be cancelled. Cpt code test classification updates setup files aoe codes. 82131 cystine. Age of onset is often younger than with other types of kidney stones and the recurrence is approximately one third.