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 119 of 2,187 · by category · by group · panels · answer lists · parts
Prothrombin time (PT) in Platelet poor plasma from Control (coagulation assay) · Coagulation 5901-4 Prothrombin time (PT) · Coagulation 5902-2 Russell viper venom time in Platelet poor plasma from Control (coagulation assay) · Coagulation 5903-0 Russell viper venom time in Platelet poor plasma (coagulation assay) · Coagulation 5904-8 Monocytes/Leukocytes (automated count) · Hematology and blood count 5905-5 Neutrophils (Synovial Fluid, automated count) · Hematology and blood count 5906-3 Platelets (automated count) · Hematology and blood count 5907-1 Giant platelets (qualitative, light microscopy) · Hematology and blood count 5908-9 Blood smear finding (light microscopy) · Hematology and blood count 5909-7 Lactate dehydrogenase isoenzymes · Chemistry 5910-5 Lipoprotein fractions · Chemistry 5911-3 Creatine kinase isoenzymes · Chemistry 5912-1 Hemoglobin F/Hemoglobin.total (Amniotic Fluid) · Hematology and blood count 5913-9 Glucose (Blood, qualitative, test strip) · Chemistry 5914-7 lead in dialysis fluid · Chemistry 5917-0 Urea nitrogen in Dialysis fluid · Chemistry 5918-8 Creatinine in Dialysis fluid · Chemistry 5919-6 Protein in Dialysis fluid · Chemistry 5920-4 Lactate dehydrogenase in Dialysis fluid · Chemistry 5921-2 Gastric acid in Gastric fluid · Chemistry 5922-0 Gastric acid free in Gastric fluid · Chemistry 5923-8 pH of Gastric fluid · Chemistry 5924-6 Gastric acid in Gastric fluid · Chemistry 5925-3 Sodium in Dialysis fluid · Chemistry 5926-1 Potassium in Dialysis fluid · Chemistry 5927-9 Chloride in Dialysis fluid · Chemistry 5928-1 Candida albicans reaction wheal --3 days post 50 ug Candida albicans intradermal · CHALSKIN 5929-5 Mumps reaction wheal --3 days post 0.1 mL mumps intradermal · CHALSKIN 5930-3 Trichophyton reaction wheal --3 days post 50 ug trichophyton intradermal · CHALSKIN 5931-1 Cholesterol (Blood, qualitative, test strip) · Chemistry 5932-9 Lead in Dialysis fluid · Drug and toxicology 5933-7 Blood group antigens absent product unit (Blood) · Blood bank 5934-5 Benzoylecgonine (Urine) · Drug and toxicology 5935-2 Benzoylecgonine (Hair) · Drug and toxicology 5936-0 Cocaine (Urine) · Drug and toxicology 5937-8 Benzoylecgonine (Hair, qualitative) · Drug and toxicology 5938-6 Benzoylecgonine (Urine, qualitative) · Drug and toxicology 5939-4 Cocaine (qualitative) · Drug and toxicology 5940-2 Cocaine · Drug and toxicology 5941-0 Reptilase time in Platelet poor plasma from Control (coagulation assay) · Coagulation 5942-8 Reptilase time in Platelet poor plasma from control (coagulation assay) · Coagulation 5943-6 Russell viper venom time in Platelet poor plasma from control (coagulation assay) · Coagulation 5944-4 Russell viper venom time in Platelet poor plasma (coagulation assay) · Coagulation 5945-1 aPTT.factor substitution immediately after addition of normal plasma in Platelet poor plasma (coagulation assay) · Coagulation 5946-9 aPTT.factor substitution 20M post incubation with normal plasma in Platelet poor plasma from Control (coagulation assay) · Coagulation 5947-7 Activated partial thrombplastin time (aPTT).factor substitution in Platelet poor plasma (coagulation assay --immediately after addition of normal plasma) · Coagulation 5948-5 aPTT.factor substitution immediately after addition of normal plasma in Platelet poor plasma from Control (coagulation assay) · Coagulation 5949-3 aPTT.factor substitution 20M post incubation with normal plasma in Platelet poor plasma (coagulation assay) · Coagulation 5950-1 Activated partial thrombplastin time (aPTT).factor substitution in Platelet poor plasma from control (coagulation assay --immediately after addition of normal plasma) · Coagulation 5951-9 Activated partial thrombplastin time (aPTT).factor substitution in Platelet poor plasma (coagulation assay --20m post incubation with normal plasma) · Coagulation 5952-7