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 426 of 2,187 · by category · by group · panels · answer lists · parts
Volume of 8 hour Urine · SPEC 21529-3 Volume of 10 hour Urine · SPEC 21530-1 Spermatozoa Motile/Spermatozoa --1 hour post ejaculation (Semen) · FERT 21531-9 Spermatozoa Motile/Spermatozoa --2 hours post ejaculation (Semen) · FERT 21532-7 Spermatozoa Motile/Spermatozoa --3 hours post ejaculation (Semen) · FERT 21533-5 Spermatozoa Motile/Spermatozoa --4 hours post ejaculation (Semen) · FERT 21534-3 Spermatozoa Motile/Spermatozoa --6 hours post ejaculation (Semen) · FERT 21535-0 Acid sphingomyelinase (Blood) · Chemistry 21536-8 Spinach IgG Ab RAST class (qualitative) · Allergy 21537-6 Blue Spruce IgE Ab RAST class (qualitative) · Allergy 21538-4 Summer Squash IgE Ab RAST class (qualitative) · Allergy 21539-2 Zucchini IgE Ab RAST class (qualitative) · Allergy 21540-0 Zucchini IgG Ab RAST class (qualitative) · Allergy 21541-8 Strawberry IgG Ab RAST class (qualitative) · Allergy 21542-6 Sugar Cane IgG Ab RAST class (qualitative) · Allergy 21543-4 Sulfamethoxazole IgE Ab RAST class (qualitative) · Allergy 21544-2 Sulfatide IgG Ab (CSF) · Serology 21545-9 Sulfatide IgM Ab (CSF) · Serology 21546-7 Sunflower Seed IgG Ab RAST class (qualitative) · Allergy 21547-5 Sweet potato IgG Ab RAST class (qualitative) · Allergy 21548-3 Sweetgum IgE Ab RAST class (qualitative) · Allergy 21549-1 Synovial lining cells (Synovial Fluid, qualitative, light microscopy) · Hematology and blood count 21550-9 t(15;17)(q24.1;q21.1)(PML,RARA) fusion transcript or Tissue (Blood, qualitative, molecular genetics method) · MOLPATH.TRNLOC 21551-7 Mandarin IgG Ab RAST class (qualitative) · Allergy 21552-5 Tea IgG Ab RAST class (qualitative) · Allergy 21553-3 Terbufos (Urine) · Drug and toxicology 21554-1 Testosterone adjusted for sex hormone binding globulin · Chemistry 21555-8 Tetrahydrocannabinol (Urine, qualitative, screen method >20 ng/ml) · Drug and toxicology 21556-6 Tetrahydrocannabinol (Urine, qualitative, screen method >100 ng/ml) · Drug and toxicology 21557-4 Thallium in 24 hour Urine · Drug and toxicology 21558-2 Theophylline in Gastric fluid · Drug and toxicology 21559-0 Thermoactinomyces candidus Ab (qualitative) · Microbiology 21560-8 Laceyella sacchari Ab (qualitative) · Microbiology 21561-6 Thiocyanate/Creatinine (Urine) · Drug and toxicology 21562-4 Thiopurine methyltransferase (Red Blood Cells) · Chemistry 21563-2 Thiosulfate · Chemistry 21564-0 tiaGABine · Drug and toxicology 21565-7 TOLAZamide (qualitative) · Drug and toxicology 21566-5 TOLBUTamide (qualitative) · Drug and toxicology 21567-3 Tomato IgG Ab RAST class (qualitative) · Allergy 21568-1 Toxoplasma gondii IgG Ab (CSF, immunofluorescence) · Microbiology 21569-9 Toxoplasma gondii IgG Ab (qualitative, sabin dye test) · Microbiology 21570-7 Toxoplasma gondii IgM Ab (CSF, immunofluorescence) · Microbiology 21571-5 Transferrin.carbohydrate deficient.asialo/Transferrin.total · Chemistry 21572-3 Transferrin.carbohydrate deficient.disialo/Transferrin.total · Chemistry 21573-1 Transferrin.carbohydrate deficient.monosialo/Transferrin.total · Chemistry 21574-9 Transferrin.carbohydrate deficient.pentasialo/Transferrin.total · Chemistry 21575-6 Transferrin.carbohydrate deficient.tetrasialo/Transferrin.total · Chemistry 21576-4 Transferrin.carbohydrate deficient.trisialo/Transferrin.total · Chemistry 21577-2 Tree of Heaven IgE Ab RAST class (qualitative) · Allergy 21578-0