Home forum LOINC Results Codes – Why so many? Home › Forums › Welcome to the LOINC User Forum › General Discussion › LOINC Results Codes – Why so many? This topic contains 0 replies, has 1 voice, and was last updated by Mark Edmunds 6 days, 23 hours ago. Viewing 1 post (of 1 total) Author Posts 2019-01-10 at 21:42 #24062 Mark EdmundsParticipant LOINC apparently contains numerous codes for the same lab results. Can someone help me understand why this occurs in the context of the following example? Filtering for Component “LDL” creates for me the following questions: 1)Why are there multiple codes corresponding to the same test, with the same name? a. 14 “Cholesterol.in LDL” components b. 14 “Cholesterol.in LDL 1….7” components 2)What is the difference between these results? 3)Why are the majority of codes apparently not used? a. Common_Test_Rank shows only 3 codes used for results b. Common_Order_Rank shows only one-code used for ordering c. Common_SI_Test_Rank returns 3-different codes i. What are SI Tests? 1. Are they research related? 4)Anything else I should know? Thanks in advance! Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic.