Lists of LOINC codes are available at the website of Mayo Medical Laboratories and at loinc.org. The list by Mayo Medical Laboratories comes as an Excel spreadsheet whereas loinc.org provides a searchable database.
Once on the website of Mayo Medical Laboratories, click LOINC Codes Spreadsheet to download the list of LOINC codes.The list provides detailed information about over 4,500 LOINC codes. Some of the information available are: Test ID, test name, result ID, result name and LOINC attributes.
Alternatively, the database by loinc.org works by responding to queries. Use the search bar at the top to search the database for a specific LOINC code. Loinc.org also provides detailed information about the codes.