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 415 of 2,187 · by category · by group · panels · answer lists · parts
Tritrichomonas foetus in Preputial wash (qualitative, organism specific culture) · Microbiology 20976-7 Urea (Blood) · Chemistry 20977-5 Urea in Gastric fluid · Chemistry 20978-3 Urea in Feed · Chemistry 20979-1 Venezuelan equine encephalitis virus neutralizing antibody (neutralization test) · Microbiology 20980-9 Verotoxin identified in Isolate · Microbiology 20981-7 Western equine encephalitis virus neutralizing antibody (neutralization test) · Microbiology 20982-5 Western equine encephalitis virus Ab (qualitative, immunofluorescence) · Microbiology 20983-3 Western equine encephalitis virus Ab (CSF, qualitative, immunofluorescence) · Microbiology 20984-1 Western equine encephalitis virus Ab (qualitative, complement fixation) · Microbiology 20985-8 Western equine encephalitis virus Ab (CSF, qualitative, complement fixation) · Microbiology 20986-6 Yersinia sp identified in Dairy product (organism specific culture) · Microbiology 20987-4 Zinc phosphide in Gastrointestinal content · Drug and toxicology 20988-2 Zinc phosphide in Specimen · Drug and toxicology 20989-0 APC gene mutations found or Tissue (Blood, molecular genetics method nominal) · Molecular pathology, mutations 20990-8 Antithrombin in Platelet poor plasma · Coagulation 20991-6 Bordetella pertussis Ab in Specimen (qualitative) · Microbiology 20992-4 Chlamydia trachomatis DNA in Unspecified specimen (qualitative, dna probe) · Microbiology 20993-2 Choriogonadotropin · Chemistry 20994-0 Cortisol--1 hour post dose corticotropin · Challenge tests 20995-7 Coxsackievirus B1+B2+B3+B4+B5+B6 Ab · Microbiology 20996-5 Cryptosporidium sp Ag in Unspecified specimen (qualitative, immunofluorescence) · Microbiology 20997-3 Cell Fractions/Differential (CSF) · Hematology and blood count 20998-1 Cell Fractions/Differential (Body Fluid) · Hematology and blood count 20999-9 Erythrocyte distribution width (automated count) · Hematology and blood count 21000-5 Coagulation factor VIII in Specimen · Coagulation 21001-3 Fibrinogen in Platelet poor plasma · Coagulation 21002-1 Fungus identified in Specimen (fungus stain) · Microbiology 21003-9 Glucose tolerance · Challenge tests 21004-7 Hepatitis B virus core Ab from Donor (immunoassay) · Microbiology 21005-4 Hepatitis B virus surface Ab from Donor (immunoassay) · Microbiology 21006-2 HIV 1 Ab from Donor (qualitative) · Microbiology 21007-0 HIV 1 RNA (viral load) (probe) · Microbiology 21008-8 HIV 1 Ab band pattern (immunoblot (ib)) · Microbiology 21009-6 CD1 cells (Blood) · Cell markers 21010-4 CD13 cells (Blood) · Cell markers 21011-2 CD15 cells (Blood) · Cell markers 21012-0 CD22 cells (Blood) · Cell markers 21013-8 CD24 cells (Blood) · Cell markers 21014-6 CD33 cells (Blood) · Cell markers 21015-3 CD41 cells (Blood) · Cell markers 21016-1 CD57 cells (Blood) · Cell markers 21017-9 CD61 cells (Blood) · Cell markers 21018-7 Metanephrine in 24 hour Urine · Chemistry 21019-5 Bacteria identified in Specimen (anaerobe+aerobe culture) · Microbiology 21020-3 Microscopic observation in Bronchial specimen (gram stain) · Microbiology 21021-1 Microscopic observation in Dialysis fluid (gram stain) · Microbiology 21022-9 Neutrophil cytoplasmic Ab · Serology 21023-7 Pathologist interpretation tests (CSF) · Pathology 21024-5 Pathologist interpretation tests (Body Fluid) · Pathology 21025-2