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 500 of 2,187 · by category · by group · panels · answer lists · parts
Alpha aminobutyrate in 24 hour Urine · Chemistry 25305-4 Alternaria alternata IgG Ab · Microbiology 25306-2 Alternaria alternata IgG Ab RAST class (qualitative) · Microbiology 25307-0 Ammonia in 24 hour Urine · Chemistry 25308-8 Amobarbital · Drug and toxicology 25309-6 Amoxicillin+Clavulanate (method for slow-growing mycobacteria) · Antibiotic susceptibility 25310-4 Amylase in 24 hour Urine · Chemistry 25311-2 Amylase.pancreatic/Amylase.total · Chemistry 25312-0 Amylase.salivary/Amylase.total · Chemistry 25313-8 Androstenediol in 24 hour Urine · Chemistry 25314-6 11-Deoxycortisol in 24 hour Urine · Chemistry 25315-3 17-Hydroxypregnenolone · Chemistry 25316-1 17-Ketosteroids in 24 hour Urine · Chemistry 25317-9 1-Methylhistidine in 24 hour Urine · Chemistry 25318-7 3-Methylhistidine in 24 hour Urine · Chemistry 25319-5 Anserine in 24 hour Urine · Chemistry 25320-3 Antimony · Drug and toxicology 25321-1 Arginine in 24 hour Urine · Chemistry 25322-9 Arsenic · Drug and toxicology 25323-7 Arsenic/Creatinine (Urine) · Drug and toxicology 25324-5 Ascaris sp IgE Ab (immunoassay) · Allergy 25325-2 Asparagine in 24 hour Urine · Chemistry 25326-0 Aspartate in 24 hour Urine · Chemistry 25327-8 Aspergillus versicolor IgE Ab RAST class (qualitative) · Allergy 25328-6 Aureobasidium pullulans IgE Ab RAST class (qualitative) · Allergy 25329-4 Bordetella pertussis IgG Ab · Microbiology 25331-0 Bordetella pertussis IgM Ab · Microbiology 25332-8 Campylobacter fetus Ab · Microbiology 25333-6 Coxiella burnetii IgG Ab · Microbiology 25335-1 Coxiella burnetii IgM Ab · Microbiology 25336-9 Taenia solium larva IgG Ab · Microbiology 25337-7 Dengue virus IgM Ab (qualitative) · Microbiology 25338-5 Echinococcus sp Ab (qualitative) · Microbiology 25339-3 Fasciola sp Ab · Microbiology 25342-7 Fasciola sp IgG Ab · Microbiology 25343-5 Filaria Ab · Microbiology 25344-3 Red Beet IgE Ab RAST class (qualitative) · Allergy 25345-0 Beta alanine in 24 hour Urine · Chemistry 25346-8 Filaria IgG Ab · Microbiology 25347-6 Beta aminoisobutyrate in 24 hour Urine · Chemistry 25348-4 Silver Birch IgG Ab · Allergy 25349-2 Silver Birch IgG Ab RAST class (qualitative) · Allergy 25350-0 Bismuth · Drug and toxicology 25351-8 Bordetella pertussis IgG Ab (immunofluorescence) · Microbiology 25352-6 Bordetella pertussis IgM Ab (immunofluorescence) · Microbiology 25353-4 Wheat Bran IgG Ab · Allergy 25354-2 Wheat Bran IgG Ab RAST class (qualitative) · Allergy 25355-9 Budgerigar droppings IgE Ab RAST class (qualitative) · Allergy 25356-7 Butabarbital · Drug and toxicology 25357-5 C peptide in 24 hour Urine · Chemistry 25358-3