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 423 of 2,187 · by category · by group · panels · answer lists · parts
Malt IgG Ab RAST class (qualitative) · Allergy 21379-3 Prolactin in 24 hour Urine · Chemistry 21380-1 Prolactin --1.5 hours post XXX challenge · Challenge tests 21381-9 Manganese in 24 hour Urine · Drug and toxicology 21382-7 Mercury in 24 hour Urine · Drug and toxicology 21383-5 Mesothelial cells (Peritoneal Fluid, qualitative, light microscopy) · Hematology and blood count 21384-3 Metasystox (Urine) · Drug and toxicology 21385-0 Methamphetamine (Urine, qualitative, samhsa confirm method) · Drug and toxicology 21386-8 Methylhippurate (Urine) · Drug and toxicology 21387-6 Mevinphos (Urine) · Drug and toxicology 21388-4 Saccharopolyspora rectivirgula IgE Ab · Allergy 21389-2 Saccharopolyspora rectivirgula IgE Ab RAST class (qualitative) · Allergy 21390-0 Microscopic observation in Bone (acid phosphatase stain) · Pathology 21391-8 Common Millet IgE Ab RAST class (qualitative) · Allergy 21392-6 Monkey epithelium IgE Ab RAST class (qualitative) · Allergy 21393-4 Monocytes+Macrophages/Leukocytes (Body Fluid, manual count) · Hematology and blood count 21394-2 Monocytes+Macrophages/Leukocytes (Synovial Fluid, manual count) · Hematology and blood count 21395-9 Mononuclear cells (CSF, manual count) · Hematology and blood count 21396-7 Mononuclear cells (Body Fluid, manual count) · Hematology and blood count 21397-5 Mononuclear cells (Synovial Fluid, manual count) · Hematology and blood count 21398-3 Paper Mulberry IgE Ab RAST class (qualitative) · Allergy 21399-1 Red mulberry IgE Ab RAST class (qualitative) · Allergy 21400-7 Mumps virus IgG Ab (CSF, immunofluorescence) · Microbiology 21401-5 Mumps virus IgM Ab (CSF, immunofluorescence) · Microbiology 21402-3 Mushroom IgG Ab RAST class (qualitative) · Allergy 21403-1 Mustard IgG Ab RAST class (qualitative) · Allergy 21404-9 Mycobacterium sp DNA in Bronchial specimen (qualitative, naa with probe detection) · Microbiology 21405-6 Mycoplasma pneumoniae IgM Ab (qualitative) · Microbiology 21406-4 Myelin IgA Ab · Serology 21407-2 Myelin IgG Ab · Serology 21408-0 Myelin IgM Ab · Serology 21409-8 Myelin associated glycoprotein IgM Ab · Serology 21410-6 Myelin associated glycoprotein IgM Ab · Serology 21411-4 Myocardium Ab pattern · Serology 21412-2 N-Acetylgalactosamine-4-Sulfatase (Urine) · Chemistry 21413-0 Neisseria gonorrhoeae DNA in Cervical mucus (qualitative, naa with probe detection) · Microbiology 21414-8 Neisseria gonorrhoeae DNA in Urethra (qualitative, naa with probe detection) · Microbiology 21415-5 Neisseria gonorrhoeae DNA (Urine, qualitative, naa with probe detection) · Microbiology 21416-3 Neurokinin A · Serology 21417-1 Neutrophil Ab (qualitative) · Serology 21418-9 Neutrophil cytoplasmic Ab pattern (immunofluorescence) · Serology 21419-7 Nitrate (Urine) · Drug and toxicology 21420-5 Norketamine · Drug and toxicology 21421-3 Normetanephrine in 24 hour Urine · Chemistry 21422-1 Nuclear Ab (immunofluorescence (if) rat liver) · Serology 21423-9 Nuclear IgG Ab (qualitative, immunofluorescence) · Serology 21424-7 Nutmeg IgG Ab RAST class (qualitative) · Allergy 21425-4 Oat IgG Ab RAST class (qualitative) · Allergy 21426-2 Oat IgE Ab RAST class (qualitative) · Allergy 21427-0 Olive IgE Ab · Allergy 21428-8