CLIA Complexity: Waived CPT Codes: 87723 for occult blood, 83986 for pH Slide test for detecting occult blood and determining pH in gastric samples, both aspirate and vomitus, on the same test card On-slide Performance Monitor assures that the occult blood test is performing to product specifications Scale of pH test ranges from a clinically useful 1.3 to 7.8 Both test results are available within one minute Test cards, developer, and applicator straws sold separately