I have downloaded the latest csv version (REF V2.61 REL 2017-06-23 RELMA LOINC TABLE). It’s my understanding the LOINC codes are never removed from the database, but when I search these file for these LOINC codes I cannot find them: 9594-3, 9590-1, 9591-9, 9589-3, 9588-5, 9553-9, 9552-1, 9551-3 and more. Any suggestions?
We have had several people examine the file and they have been able to find the LOINC codes that you have listed. Could you please download the file again and take another look? https://loinc.org/downloads/loinc/