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 473 of 2,187 · by category · by group · panels · answer lists · parts
Immune complex (Body Fluid, conglutinin assay) · Serology 23882-4 Inhibin A · Chemistry 23883-2 Interleukin 2 receptor (Tissue, qualitative, immunocytochemical assay) · Chemistry 23884-0 Isoheptacarboxylporphyrin in unspecified time Stool · Chemistry 23885-7 Isohexacarboxylporphyrin in unspecified time Stool · Chemistry 23886-5 Isopentacarboxylporphyrin in unspecified time Stool · Chemistry 23887-3 Isopropanol in Gastric fluid · Drug and toxicology 23888-1 Kanamycin in Specimen · Drug and toxicology 23889-9 Lead in Specimen · Drug and toxicology 23890-7 Magnesium in 24 hour Stool · Chemistry 23891-5 Magnesium in 24 hour Stool · Chemistry 23892-3 Malaoxon (Blood) · Drug and toxicology 23893-1 Maple IgE Ab RAST class (qualitative) · Allergy 23894-9 Mattress dust IgE Ab RAST class (qualitative) · Allergy 23895-6 Mercury in Specimen · Drug and toxicology 23896-4 Mesothelial cells in Specimen (qualitative, light microscopy) · Hematology and blood count 23897-2 Mesothelial cells (CSF, qualitative, light microscopy) · Hematology and blood count 23898-0 Methanol in Gastric fluid · Drug and toxicology 23899-8 Methanol (Tissue) · Drug and toxicology 23900-4 Microscopic observation (Body Fluid, wet preparation) · Microbiology 23901-2 Monocytes+Macrophages/100 leukocytes (Body Fluid, manual count) · Hematology and blood count 23902-0 Monocytes+Macrophages/Leukocytes in Specimen (manual count) · Hematology and blood count 23903-8 Monocytes+Macrophages/Leukocytes (CSF, manual count) · Hematology and blood count 23904-6 Mycophenolate · Drug and toxicology 23905-3 Mycophenolate glucuronide · Drug and toxicology 23906-1 Myelin associated glycoprotein/Sulfated glucuronic paragloboside IgM Ab · Serology 23907-9 Neisseria gonorrhoeae DNA in Unspecified specimen (qualitative, dna probe) · Microbiology 23908-7 Wild Oats IgE Ab RAST class (qualitative) · Allergy 23909-5 Osmotic fragility--0.0% sodium chloride (Red Blood Cells) · Hematology and blood count 23910-3 Osmotic fragility--0.30% sodium chloride (Red Blood Cells) · Hematology and blood count 23911-1 Osmotic fragility--0.35% sodium chloride (Red Blood Cells) · Hematology and blood count 23912-9 Osmotic fragility--0.40% sodium chloride (Red Blood Cells) · Hematology and blood count 23913-7 Osmotic fragility--0.45% sodium chloride (Red Blood Cells) · Hematology and blood count 23914-5 Osmotic fragility--0.50% sodium chloride (Red Blood Cells) · Hematology and blood count 23915-2 Osmotic fragility--0.55% sodium chloride (Red Blood Cells) · Hematology and blood count 23916-0 Osmotic fragility--0.60% sodium chloride (Red Blood Cells) · Hematology and blood count 23917-8 Osmotic fragility--0.60% sodium chloride 24 hour 37 degree C incubation (Red Blood Cells) · Hematology and blood count 23918-6 Osmotic fragility--0.65% sodium chloride (Red Blood Cells) · Hematology and blood count 23919-4 Osmotic fragility--0.65% sodium chloride 24 hour 37 degree C incubation (Red Blood Cells) · Hematology and blood count 23920-2 Osmotic fragility--0.75% sodium chloride 24 hour 37 degree C incubation (Red Blood Cells) · Hematology and blood count 23921-0 Osmotic fragility--0.85% sodium chloride (Red Blood Cells) · Hematology and blood count 23922-8 Parakeet droppings IgE Ab RAST class (qualitative) · Allergy 23923-6 Parakeet serum IgE Ab RAST class (qualitative) · Allergy 23924-4 Penicillin (gradient strip) · Antibiotic susceptibility 23925-1 Bell Pepper IgE Ab RAST class (qualitative) · Allergy 23926-9 White Pepper IgE Ab RAST class (qualitative) · Allergy 23927-7 Protoporphyrin · Chemistry 23928-5 Ribonucleoprotein extractable nuclear IgG Ab (qualitative) · Serology 23929-3 Salmonella typhi O D Ab (agglutination) · Microbiology 23930-1 Salmonella typhi O D (immunofluorescence) · Microbiology 23931-9