LOINC (UNIVERSAL) ORDER CODES

SINGLE TEST LIST

Quest Diagnostics Review

July 2014

Quest Diagnostics | 2

Single Test Review

• Some tests listed were panels. Reported using >1 LOINC code, multiple result fields.

• Ex. ABO Group and Rh Type

• Some tests are not typically offered in an ambulatory setting.• Ex. ABO Group & Rh Type in post-transfusion reaction test

• Drug Screens – One order code OR multiple order codes based on various cutoff values?

• Body Fluid tests – Each validated fluid type has its own Order Code and appropriate reference range.

• Ex. Glucose, Fluids: Pericardial, Peritoneal, Pleural, Synovial

• Method vs. Method-less Code?• As the goal is to have a standard concise list, we cannot allow all LOINC codes to be used as

an Order Code

Quest Diagnostics | 3

Single Test Review continued

• Selection of Standard Order Code - Single vs. Multi-Slot test• Ex. Borrelia burgdorferi IgG&IgM Ab [Presence] – 22131-7

Borrelia burgdorferi IgG&IgM Ab [Units/volume] – 34148-7Are these the same test kits? If not, the test order name has to be distinctive.

• Anatomic Pathology – Report discrete data in multiple fields.• Supports Cancer Registry reporting

• Microbiology – Ordered by specimen source OR aerobic vs. anaerobic culture OR organism name.

• Reflex tests – Initially a single result LOINC, which may require additional test(s) with additional LOINC code(s) or confirmatory test with additional LOINC code.