LOINC codes
The universal code system for lab observations. Every biomarker on this site is anchored to a LOINC code; a code page says what its parts mean.
By class
435 classes · the 32 with 500 codes or more Microbiology · MICRO 14,888 Chemistry · CHEM 10,855 Drug and toxicology · DRUG/TOX 8,921 Radiology · RAD 7,440 Allergy · ALLERGY 6,024 Challenge tests · CHAL 3,964 Document ontology · DOC.ONTOLOGY 3,759 PhenX measures · PHENX 3,686 Serology · SERO 3,167 Lab orders · LABORDERS.ONTOLOGY 2,546 PROMIS survey · SURVEY.PROMIS 2,463 Hematology and blood count · HEM/BC 2,449 Antibiotic susceptibility · ABXBACT 2,115 Cell markers · CELLMARK 1,746 General health survey · SURVEY.GNHLTH 1,629 Molecular pathology, mutations · MOLPATH.MUT 1,293 Blood bank · BLDBK 1,113 Coagulation · COAG 1,002 CMS survey · SURVEY.CMS 968 History and physical · H&P.HX 901 Pulmonary · PULM 878 PANEL.SURVEY.CMS 866 MDS survey · SURVEY.MDS 864 Cardiac ultrasound · CARD.US 817 Obstetric ultrasound · OB.US 793 Pathology · PATH 707 Molecular pathology · MOLPATH 704 PANEL.PHENX 704 Urinalysis · UA 597 HLA typing · HLA 526 H&P.PX 507 CLIN 502
All codes, by number
109,325 codes · page 425 of 2,187 · by category · by group · panels · answer lists · parts
Potato IgG Ab RAST class (qualitative) · Allergy 21479-1 Propoxur (Urine) · Drug and toxicology 21480-9 Propranolol in Gastric fluid · Drug and toxicology 21481-7 Protein in 24 hour Urine · Chemistry 21482-5 quiNIDine --peak · Drug and toxicology 21483-3 Mother's race · CLIN 21484-1 Radish IgG Ab RAST class (qualitative) · Allergy 21485-8 Rape Pollen IgE Ab RAST class (qualitative) · Allergy 21486-6 Ribosomal P Ab (CSF) · Serology 21487-4 Rice IgG Ab RAST class (qualitative) · Allergy 21488-2 Rickettsia (Proteus OX19) Ab (latex agglutination) · Microbiology 21489-0 Rickettsia (Proteus OX2) Ab (latex agglutination) · Microbiology 21490-8 Rickettsia (Proteus OXK) Ab (latex agglutination) · Microbiology 21491-6 Rickettsia conorii IgG Ab · Microbiology 21492-4 Rickettsia conorii IgM Ab · Microbiology 21493-2 Rickettsia spotted fever group IgG Ab (CSF, immunofluorescence) · Microbiology 21494-0 Rickettsia spotted fever group IgM Ab (CSF, immunofluorescence) · Microbiology 21495-7 Rickettsia typhus group IgG Ab (CSF, immunofluorescence) · Microbiology 21496-5 Rickettsia typhus group IgM Ab (CSF, immunofluorescence) · Microbiology 21497-3 Orientia tsutsugamushi IgG Ab · Microbiology 21498-1 Orange roughy IgE Ab RAST class (qualitative) · Allergy 21499-9 Measles virus IgG Ab (CSF, immunofluorescence) · Microbiology 21500-4 Measles virus IgG Ab (immunofluorescence) · Microbiology 21501-2 Measles virus IgM Ab (CSF, immunofluorescence) · Microbiology 21502-0 Measles virus IgM Ab (qualitative) · Microbiology 21503-8 Rye IgG Ab RAST class (qualitative) · Allergy 21504-6 Rye IgG Ab RAST class (qualitative) · Allergy 21505-3 Safflower IgG Ab RAST class (qualitative) · Allergy 21506-1 Sage IgG Ab RAST class (qualitative) · Allergy 21507-9 California Sagebrush IgE Ab RAST class (qualitative) · Allergy 21508-7 Saint Louis encephalitis virus IgG Ab (CSF, immunofluorescence) · Microbiology 21509-5 Saint Louis encephalitis virus IgM Ab (CSF, immunofluorescence) · Microbiology 21510-3 Salmonella paratyphi A H Ab (agglutination) · Microbiology 21511-1 Salmonella paratyphi A H Ab (immunofluorescence) · Microbiology 21512-9 Salmonella paratyphi B H Ab (agglutination) · Microbiology 21513-7 Salmonella paratyphi B H Ab (immunofluorescence) · Microbiology 21514-5 Annual Saltbush IgE Ab RAST class (qualitative) · Allergy 21515-2 Scallop IgG Ab RAST class (qualitative) · Allergy 21516-0 Schistosoma sp IgE Ab RAST class (qualitative) · Allergy 21517-8 SCL-70 extractable nuclear IgG Ab (qualitative) · Serology 21518-6 Sesame Seed IgG Ab RAST class (qualitative) · Allergy 21519-4 Shark IgE Ab RAST class (qualitative) · Allergy 21520-2 Shrimp IgG Ab RAST class (qualitative) · Allergy 21521-0 Smith extractable nuclear Ab+Ribonucleoprotein extractable nuclear IgG Ab · Serology 21522-8 Smith extractable nuclear IgG Ab (qualitative) · Serology 21523-6 Red Snapper IgG Ab RAST class (qualitative) · Allergy 21524-4 Sodium in 24 hour Urine · Chemistry 21525-1 Sodium in 24 hour Urine · Chemistry 21526-9 Sodium in 24 hour Urine · Chemistry 21527-7 Sole IgG Ab RAST class (qualitative) · Allergy 21528-5