Lactase, maltase, palatinase and sucrase are mucosal disaccharidases that are present in normal small intestine and fetal colon. A decrease in the enzyme activity of these disaccharidases has been noted in colonic adenomas, adenocarcinomas and malabsorption. Decreased disaccharidase activity is a good indicator of mucosal injury with the exception of lactase.
Place 5 mg (2 mg) small bowel biopsy on the interior surface of a 2 mL
polypropylene screw-cap cryovial or small polypropylene collection
tube. Freeze within 2 hours of collection at -20 degrees C.
Reported (Analytical Time)
The CPT codes provided are based on AMA guidelines and are for informational purposes only.
CPT coding is the sole responsibility of the billing party.
Please direct any questions regarding coding to the payer being billed.
Reject Criteria: Samples frozen later than 2 hours post-collection; samples received in urine containers; samples immersed in a colorless fluid (i.e. water, formalin, saline, etc); samples placed on gauze, filter paper or any other type of support media.