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 420 of 2,187 · by category · by group · panels · answer lists · parts
Coumaphos (Urine) · Drug and toxicology 21229-0 Cow milk IgG Ab RAST class (qualitative) · Allergy 21230-8 Crab IgG Ab RAST class (qualitative) · Allergy 21231-6 Creatinine (Arterial Blood) · Chemistry 21232-4 Cryptosporidium sp Ag (Stool, qualitative) · Microbiology 21233-2 Cucumber IgG Ab RAST class (qualitative) · Allergy 21234-0 Cumin IgE Ab RAST class (qualitative) · Allergy 21235-7 Cyclohexanone (Urine) · Drug and toxicology 21236-5 Cytomegalovirus IgM Ab (CSF, immunofluorescence) · Microbiology 21237-3 Deer hair IgE Ab RAST class (qualitative) · Allergy 21238-1 Desalkylhalazepam · Drug and toxicology 21239-9 Dextromethorphan (Urine) · Drug and toxicology 21240-7 diazePAM+Nordiazepam (Urine) · Drug and toxicology 21241-5 Protoporphyrin in unspecified time Stool · Chemistry 21242-3 Diethyl ether (Urine) · Drug and toxicology 21243-1 Diethylpropion · Drug and toxicology 21244-9 Diisobutylketone (Urine) · Drug and toxicology 21245-6 Dimethoate (Urine) · Drug and toxicology 21246-4 DMD gene mutations found or Tissue (Blood, molecular genetics method nominal) · Molecular pathology, mutations 21247-2 Dobutamine · Drug and toxicology 21248-0 Dolichol (Urine) · Chemistry 21249-8 Doxycycline in Specimen · Drug and toxicology 21250-6 Echinococcus granulosus IgE Ab RAST class (qualitative) · Allergy 21251-4 Echinococcus granulosus IgG Ab (qualitative, immunoblot) · Microbiology 21252-2 Egg white IgG Ab RAST class (qualitative) · Allergy 21253-0 Egg yolk IgG Ab RAST class (qualitative) · Allergy 21254-8 Eggplant IgG Ab RAST class (qualitative) · Allergy 21255-5 Elder marsh IgE Ab RAST class (qualitative) · Allergy 21256-3 Burweed marshelder IgE Ab RAST class (qualitative) · Allergy 21257-1 Endive IgG Ab RAST class (qualitative) · Allergy 21258-9 Entamoeba histolytica Ab (hemagglutination) · Microbiology 21259-7 Epstein Barr virus nuclear Ab (immunofluorescence) · Microbiology 21260-5 Erythromycin IgE Ab RAST class (qualitative) · Allergy 21261-3 Escherichia coli shiga-like toxin (Stool, qualitative, immunoassay) · Microbiology 21262-1 Estradiol (E2) in 24 hour Urine · Chemistry 21263-9 Estriol (E3).unconjugated adjusted · Chemistry 21264-7 Estriol (E3).unconjugated unadjusted · Chemistry 21265-4 Ethion (Urine) · Drug and toxicology 21266-2 O-Ethyl O-(p-nitrophenyl) phenylphosphonothionate (Urine) · Drug and toxicology 21267-0 Fenchlorphos (Urine) · Drug and toxicology 21268-8 Fenthion (Urine) · Drug and toxicology 21269-6 Fig IgE Ab RAST class (qualitative) · Allergy 21270-4 Fireweed IgE Ab · Allergy 21271-2 Fireweed IgE Ab RAST class (qualitative) · Allergy 21272-0 Flax IgE Ab RAST class (qualitative) · Allergy 21273-8 Flounder IgG Ab RAST class (qualitative) · Allergy 21274-6 Follitropin --15 minutes post dose gonadotropin releasing hormone · Challenge tests 21275-3 Follitropin --1 hour post XXX challenge · Challenge tests 21276-1 Follitropin --2 hours post dose gonadotropin releasing hormone · Challenge tests 21277-9 Follitropin --45 minutes post dose gonadotropin releasing hormone · Challenge tests 21278-7