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 53 of 2,187 · by category · by group · panels · answer lists · parts
Magnesium · Chemistry 2601-3 Malate dehydrogenase · Chemistry 2602-1 Malonate · Chemistry 2603-9 Mannitol renal clearance in 24 hour Urine and Serum or Plasma · Drug and toxicology 2604-7 Meat fibers (Stool, qualitative, light microscopy) · Chemistry 2605-4 Melanin (Urine, qualitative) · Chemistry 2606-2 Melanin (Urine) · Chemistry 2607-0 Metanephrines (Urine) · Chemistry 2608-8 Metanephrines in 24 hour Urine · Chemistry 2609-6 Methane in Exhaled gas · Drug and toxicology 2610-4 Methcoproporphyrin · Chemistry 2611-2 Methemalbumin · Chemistry 2612-0 Methemoglobin (Blood, qualitative) · Chemistry 2613-8 Methemoglobin/Hemoglobin.total (Blood) · Chemistry 2614-6 Methemoglobin/Hemoglobin.total (Arterial Blood) · Chemistry 2615-3 Methemoglobin/Hemoglobin.total (Capillary Blood) · Chemistry 2616-1 Methemoglobin/Hemoglobin.total (Venous Blood) · Chemistry 2617-9 Methemoglobin/Hemoglobin.total (Red Blood Cells) · Chemistry 2618-7 Methemoglobin (Red Blood Cells, qualitative) · Chemistry 2619-5 Methionine (Blood, qualitative) · Chemistry 2620-3 Methionine (qualitative) · Chemistry 2621-1 Methionine · Chemistry 2622-9 Methionine (Urine) · Chemistry 2623-7 Methionine in 24 hour Urine · Chemistry 2624-5 Methionine adenosyltransferase · Chemistry 2625-2 Methoxyacetate · Drug and toxicology 2626-0 Methylenetetrahydrofolate dehydrogenase NAD · Chemistry 2627-8 Methylenetetrahydrofolate dehydrogenase NADP · Chemistry 2628-6 Methylmalonate · Chemistry 2629-4 Methylmalonate (Urine) · Chemistry 2630-2 Methylmalonyl CoA mutase · Chemistry 2631-0 Methyltestosterone (Urine, qualitative) · Drug and toxicology 2632-8 Methyltestosterone (Urine) · Drug and toxicology 2633-6 Methyltestosterone in 24 hour Urine · Drug and toxicology 2634-4 Mianserin · Drug and toxicology 2635-1 Mianserin (Urine) · Drug and toxicology 2636-9 Mucoprotein · Chemistry 2637-7 Myelin basic protein (CSF) · Chemistry 2638-5 Myoglobin · Chemistry 2639-3 Myoglobin (Urine, qualitative) · Chemistry 2640-1 Myoglobin (Urine) · Chemistry 2641-9 Myoglobin in 24 hour Urine · Chemistry 2642-7 N-acetyl-beta-glucosaminidase · Chemistry 2643-5 Alpha-N-acetylglucosaminidase (Urine) · Chemistry 2644-3 N-Acetylgalactosamine-4-Sulfatase (Amniotic Fluid) · Chemistry 2645-0 N-Acetylgalactosamine-4-Sulfatase · Chemistry 2646-8 N-Acetylgalactosamine-4-Sulfatase (Tissue) · Chemistry 2647-6 N-Acetylgalactosamine-4-Sulfatase in Leukocytes · Chemistry 2648-4 N-Acetylgalactosamine-6-Sulfatase (Tissue) · Chemistry 2649-2 N-Acetylglucosamine-6-Sulfatase · Chemistry 2650-0