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 407 of 2,187 · by category · by group · panels · answer lists · parts
Colony count in Catheter tip (culture) · Microbiology 20566-6 Ferritin (immunoassay) · Chemistry 20567-4 Prolactin (immunoassay) · Chemistry 20568-2 Creatine kinase.MB/Creatine kinase.total · Chemistry 20569-0 Hematocrit (calculation) · Hematology and blood count 20570-8 Hepatitis C virus RNA (viral load) (probe with signal amplification) · Microbiology 20571-6 Hemoglobin A/Hemoglobin.total (electrophoresis) · Hematology and blood count 20572-4 Histoplasma capsulatum mycelial phase Ab (complement fixation) · Microbiology 20573-2 Histoplasma capsulatum yeast phase Ab (complement fixation) · Microbiology 20574-0 Hepatitis A virus Ab (qualitative) · Microbiology 20575-7 Galactose 1 phosphate uridyl transferase (Blood, qualitative) · Chemistry 20576-5 Protein (electrophoresis) · Chemistry 20577-3 Vancomycin · Drug and toxicology 20578-1 Methanol (qualitative, screen method) · Drug and toxicology 20579-9 Leukocytes in Specimen (automated count) · Cell markers 20584-9 Lymphocytes in Specimen (automated count) · Hematology and blood count 20585-6 CD1 cells/cells in Specimen · Cell markers 20586-4 CD10 cells/cells in Specimen · Cell markers 20587-2 CD13 cells/cells in Specimen · Cell markers 20588-0 CD14 cells/cells in Specimen · Cell markers 20589-8 CD15 cells/cells in Specimen · Cell markers 20590-6 CD16+CD57- cells/cells in Specimen · Cell markers 20591-4 CD19 cells in Specimen · Cell markers 20592-2 CD19 cells/cells in Specimen · Cell markers 20593-0 CD2 cells/cells in Specimen · Cell markers 20594-8 CD20 cells/cells in Specimen · Cell markers 20595-5 CD22 cells/cells in Specimen · Cell markers 20596-3 CD24 cells/cells in Specimen · Cell markers 20597-1 CD3 cells in Specimen · Cell markers 20598-9 CD3 cells/cells in Specimen · Cell markers 20599-7 CD30 cells/cells in Specimen · Cell markers 20600-3 CD33 cells/cells in Specimen · Cell markers 20601-1 CD34 cells/cells in Specimen · Cell markers 20602-9 CD38 cells/cells in Specimen · Cell markers 20603-7 CD3-CD16+CD56+ (Natural killer) cells in Specimen · Cell markers 20604-5 CD4 cells in Unspecified specimen · Cell markers 20605-2 CD4 cells/100 cells in Unspecified specimen · Cell markers 20606-0 CD3+CD4+ (T4 helper) cells/CD3+CD8+ (T8 suppressor cells) cells in Specimen · Cell markers 20607-8 CD41 cells/cells in Specimen · Cell markers 20608-6 CD42 cells/cells in Specimen · Cell markers 20609-4 CD45 (Lymphs) cells/cells in Specimen · Cell markers 20610-2 CD5 cells/cells in Specimen · Cell markers 20611-0 CD7 cells/cells in Specimen · Cell markers 20612-8 CD8 cells in Unspecified specimen · Cell markers 20613-6 CD8 cells/100 cells in Unspecified specimen · Cell markers 20614-4 IgD lymphocytes/Lymphocytes in Specimen · Cell markers 20615-1 IgM lymphocytes/Lymphocytes in Specimen · Cell markers 20616-9 Kappa lymphocytes/Lymphocytes in Specimen · Cell markers 20617-7 Lambda lymphocytes/Lymphocytes in Specimen · Cell markers 20618-5 Lymphocytes/Leukocytes in Specimen (automated count) · Cell markers 20619-3