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 52 of 2,187 · by category · by group · panels · answer lists · parts
Lactoferrin · Chemistry 2551-0 Lactose · Chemistry 2552-8 Lactose (Urine, qualitative) · Chemistry 2553-6 Lactose in 24 hour Urine · Chemistry 2554-4 Lecithin cholesterol acyltransferase · Chemistry 2555-1 Lecithin phosphorus (Amniotic Fluid) · Chemistry 2556-9 Lecithin/Sphingomyelin (Amniotic Fluid) · Chemistry 2557-7 Leucine (qualitative) · Chemistry 2558-5 Leucine (qualitative) · Chemistry 2559-3 Leucine · Chemistry 2560-1 Leucine (Urine) · Chemistry 2561-9 Leucine in 24 hour Urine · Chemistry 2562-7 Leukocyte esterase in Leukocytes · Chemistry 2563-5 Linoleate (C18:2w6) · Chemistry 2564-3 Cholesterol · Chemistry 2565-0 Fatty acids.nonesterified · Chemistry 2566-8 Phospholipid phosphorus · Chemistry 2567-6 Phospholipid · Chemistry 2568-4 Lipids · Chemistry 2569-2 Fat (Stool) · Chemistry 2570-0 Triglyceride · Chemistry 2571-8 Lipoprotein lipase · Chemistry 2572-6 Lipoprotein.alpha · Chemistry 2573-4 Lipoprotein.beta · Chemistry 2574-2 Lipoprotein.pre-beta · Chemistry 2575-9 Lipoproteins · Chemistry 2576-7 Lithocholate · Chemistry 2577-5 Lutropin (Semen) · Chemistry 2578-3 Lutropin · Chemistry 2579-1 Lutropin (Urine) · Chemistry 2580-9 Gonadotropin releasing hormone · Chemistry 2581-7 Lutropin.alpha subunit · Chemistry 2582-5 Lutropin.beta subunit · Chemistry 2583-3 Lysine (qualitative) · Chemistry 2584-1 Lysine · Chemistry 2585-8 Lysine (Urine) · Chemistry 2586-6 Lysine in 24 hour Urine · Chemistry 2587-4 Lysolecithin acyltransferase (Red Blood Cells) · Chemistry 2588-2 Lysozyme · Chemistry 2589-0 Lysozyme in 24 hour Urine · Chemistry 2590-8 Macroamylase · Chemistry 2591-6 Macroglobulin · Chemistry 2592-4 Magnesium (Blood) · Chemistry 2593-2 Magnesium (CSF) · Chemistry 2594-0 Magnesium in Dialysis fluid · Chemistry 2595-7 Magnesium (Body Fluid) · Chemistry 2596-5 Magnesium (Red Blood Cells) · Chemistry 2597-3 Magnesium (Urine) · Chemistry 2598-1 Magnesium in 24 hour Urine · Chemistry 2599-9 Magnesium Ionized · Chemistry 2600-5