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Amyloid A and P react with amyloid deposits in many tissues. When accompanied by Congo Red, Amyloid A and P can be used to distinguish primary and secondary amyloidosis. Because these stains are interpreted in context of each other and Congo Red, testing options available to global and tech-only clients differ.
Panel for global clients: (88342x1, 88341x1) or 88341x2. Single stain for tech-only clients: 88342x1 or 88341x1 for each stain
*The CPT codes provided with our test descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.
Last Updated: July 28, 2025