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 416 of 2,187 · by category · by group · panels · answer lists · parts
Pathologist interpretation tests (Blood) · Pathology 21026-0 Platelet aggregation in Platelet poor plasma · Coagulation 21027-8 Protein in 24 hour Urine · Chemistry 21028-6 Reagin Ab from Donor (qualitative, vdrl) · Microbiology 21030-2 Saint Louis encephalitis virus in Specimen · Microbiology 21031-0 Thrombin time (Blood, coagulation assay) · Coagulation 21032-8 Yeast.budding sediment (Urine, qualitative) · Urinalysis 21033-6 11-Deoxycortisol --evening specimen · Chemistry 21034-4 11-Deoxycortisol --morning specimen · Chemistry 21035-1 17-Hydroxycorticosteroids in 24 hour Urine · Chemistry 21036-9 17-Hydroxypregnenolone in 24 hour Urine · Chemistry 21037-7 17-Ketosteroids in 24 hour Urine · Chemistry 21038-5 18-Hydroxycortisol in 24 hour Urine · Chemistry 21039-3 Alpha ketoglutarate/Creatinine (Urine) · Chemistry 21040-1 3-Hydroxydodecanedioate (3-OH-D-C12)/Creatinine (Urine) · Chemistry 21041-9 3-Hydroxydodecanoate (3-OH-C12:0)/Creatinine (Urine) · Chemistry 21042-7 3-Methoxy-4-Hydroxyphenylglycol in 24 hour Urine · Chemistry 21043-5 5-Alpha tetrahydrocortisol in 24 hour Urine · Chemistry 21044-3 5-Hydroxytryptophan in 24 hour Urine · Drug and toxicology 21045-0 7-Aminoflunitrazepam · Drug and toxicology 21046-8 8-Hydroxyloxapine (Urine) · Drug and toxicology 21047-6 Acetaldehyde (Urine) · Drug and toxicology 21048-4 Acetone (Tissue) · Drug and toxicology 21049-2 Acetylmorphine (Urine) · Drug and toxicology 21050-0 Acrylaldehyde · Drug and toxicology 21051-8 Adenosine monophosphate.cyclic.nephrogenous and Serum or Plasma (Urine) · Chemistry 21052-6 Adenovirus IgG Ab · Microbiology 21053-4 Adenovirus IgM Ab (qualitative) · Microbiology 21054-2 Adenovirus DNA (qualitative, naa with probe detection) · Microbiology 21055-9 Alanine+Cystine+Histidine+Homocysteine+Leucine+Phenylalanine+Tyrosine (Urine, qualitative) · Chemistry 21056-7 Alanine+Histidine+Leucine+Phenylalanine+Tyrosine (qualitative) · Chemistry 21057-5 Albumin --2 hours post peritoneal dialysis · Chemistry 21058-3 Albumin in 24 hour Urine · Chemistry 21059-1 Grey Alder IgE Ab RAST class (qualitative) · Allergy 21060-9 Alfalfa IgG Ab RAST class (qualitative) · Allergy 21061-7 Allobarbital · Drug and toxicology 21062-5 Almond IgG Ab RAST class (qualitative) · Allergy 21063-3 Acid alpha glucosidase (Amniotic Fluid) · Chemistry 21064-1 Alternaria alternata IgG Ab RAST class (qualitative) · Allergy 21065-8 Ampicillin in Specimen · Drug and toxicology 21066-6 Black Ant IgE Ab RAST class (qualitative) · Allergy 21067-4 Red Ant IgE Ab RAST class (qualitative) · Allergy 21068-2 Other Antibiotic (minimum inhibitory concentration (mic)) · Antibiotic susceptibility 21070-8 Antimony in 24 hour Urine · Drug and toxicology 21071-6 Apple IgG Ab RAST class (qualitative) · Allergy 21072-4 Apricot IgG Ab RAST class (qualitative) · Allergy 21073-2 Arsenic in 24 hour Urine · Drug and toxicology 21074-0 Ascaris lumbricoides IgE Ab · Allergy 21075-7 Ascaris lumbricoides IgE Ab RAST class (qualitative) · Allergy 21076-5 Black Ash IgE Ab · Allergy 21077-3