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 501 of 2,187 · by category · by group · panels · answer lists · parts
Cadmium · Drug and toxicology 25359-1 Cadmium (Urine) · Drug and toxicology 25360-9 Caffeine · Drug and toxicology 25361-7 Calcium in 24 hour Urine · Chemistry 25362-5 Campylobacter fetus Ab (complement fixation) · Microbiology 25363-3 Campylobacter jejuni Ab (complement fixation) · Microbiology 25364-1 Carnosine in 24 hour Urine · Chemistry 25365-8 cefOXitin (method for slow-growing mycobacteria) · Antibiotic susceptibility 25366-6 cefTRIAXone (method for slow-growing mycobacteria) · Antibiotic susceptibility 25367-4 Blue Cheese IgE Ab RAST class (qualitative) · Allergy 25368-2 Chlamydia sp IgA Ab · Microbiology 25369-0 Chocolate IgE Ab RAST class (qualitative) · Allergy 25370-8 Cholesterol in VLDL · Chemistry 25371-6 Choriogonadotropin (Urine) · Chemistry 25372-4 Choriogonadotropin.beta subunit free · Chemistry 25373-2 Chromium · Drug and toxicology 25374-0 Chymotrypsin (Stool) · Chemistry 25375-7 Citrulline in 24 hour Urine · Chemistry 25376-5 Recalcification time in Platelet poor plasma from Control (coagulation assay) · Coagulation 25377-3 Cobalt · Drug and toxicology 25378-1 Cobalt in 24 hour Urine · Drug and toxicology 25379-9 Cocksfoot IgE Ab RAST class (qualitative) · Allergy 25380-7 Corticosterone · Chemistry 25381-5 Cortisone · Chemistry 25382-3 Cow milk IgE Ab RAST class (qualitative) · Allergy 25383-1 Coxiella burnetii IgG Ab (immunofluorescence) · Microbiology 25384-9 Coxiella burnetii IgM Ab (immunofluorescence) · Microbiology 25385-6 Creatinine (Body Fluid) · Chemistry 25386-4 Cyanide · Drug and toxicology 25387-2 Cystathionine in 24 hour Urine · Chemistry 25388-0 Taenia solium larva IgG Ab (immunoassay) · Microbiology 25389-8 Cytokeratin 19 · Chemistry 25390-6 Dehydroepiandrosterone (DHEA) in 24 hour Urine · Chemistry 25391-4 Dengue virus IgM Ab (qualitative, immunoblot) · Microbiology 25392-2 Desethylamiodarone · Drug and toxicology 25393-0 Nortrimipramine · Drug and toxicology 25394-8 Dog serum albumin IgE Ab RAST class (qualitative) · Allergy 25395-5 Duck meat IgE Ab RAST class (qualitative) · Allergy 25396-3 Echinococcus sp Ab (qualitative, immunoassay) · Microbiology 25397-1 Echinococcus sp Ab (counterimmunoelectrophoresis (cie)) · Microbiology 25398-9 Endomysium Ab (immunofluorescence) · Serology 25399-7 Entamoeba histolytica Ab (immunofluorescence) · Microbiology 25400-3 Estradiol (E2) in 24 hour Urine · Chemistry 25401-1 Estrogen in 24 hour Urine · Chemistry 25402-9 Estrone (E1) (Urine) · Chemistry 25403-7 Ethambutol (qualitative) · Drug and toxicology 25404-5 Ethanolamine in 24 hour Urine · Chemistry 25405-2 Fasciola sp Ab (immunofluorescence) · Microbiology 25406-0 Fasciola sp IgG Ab (immunoassay) · Microbiology 25407-8 Fenugreek IgE Ab RAST class (qualitative) · Allergy 25408-6