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 424 of 2,187 · by category · by group · panels · answer lists · parts
Olive IgE Ab RAST class (qualitative) · Allergy 21429-6 Onion IgG Ab RAST class (qualitative) · Allergy 21430-4 Opiates (Urine, qualitative, screen method >2000 ng/ml) · Drug and toxicology 21431-2 Orange IgG Ab RAST class (qualitative) · Allergy 21432-0 Orange Tree IgE Ab RAST class (qualitative) · Allergy 21433-8 Oregano IgG Ab RAST class (qualitative) · Allergy 21434-6 Osteocalcin.bovine · Chemistry 21435-3 Ovary Ab (qualitative, immunofluorescence) · Serology 21436-1 Oxychlordane · Drug and toxicology 21437-9 Oyster IgG Ab RAST class (qualitative) · Allergy 21438-7 Papain IgE Ab RAST class (qualitative) · Allergy 21439-5 Human papilloma virus 16+18+31+33+35+45+51+52+56 DNA in Cervix (qualitative, probe) · Microbiology 21440-3 Human papilloma virus 6+11+42+43+44 DNA in Cervix (qualitative, probe) · Microbiology 21441-1 Parainfluenza virus identified in Nose (organism specific culture) · Microbiology 21442-9 Paraoxon (Urine) · Drug and toxicology 21443-7 Parsley IgG Ab RAST class (qualitative) · Allergy 21444-5 Pea IgG Ab RAST class (qualitative) · Allergy 21445-2 Peach IgG Ab RAST class (qualitative) · Allergy 21446-0 Peanut IgG Ab RAST class (qualitative) · Allergy 21447-8 Pear IgG Ab RAST class (qualitative) · Allergy 21448-6 Black Pepper IgG Ab RAST class (qualitative) · Allergy 21449-4 Cayenne IgG Ab RAST class (qualitative) · Allergy 21450-2 Chili Pepper IgG Ab RAST class (qualitative) · Allergy 21451-0 Green Pepper IgG Ab RAST class (qualitative) · Allergy 21452-8 Jalepeno Pepper IgE Ab RAST class (qualitative) · Allergy 21453-6 White Pepper IgG Ab RAST class (qualitative) · Allergy 21454-4 Mint IgE Ab RAST class (qualitative) · Allergy 21455-1 Pheasant IgE Ab RAST class (qualitative) · Allergy 21456-9 Phorate (Urine) · Drug and toxicology 21457-7 Phosphate in 24 hour Urine · Chemistry 21458-5 Pickleweed IgE Ab RAST class (qualitative) · Allergy 21459-3 Walleye Pike IgE Ab RAST class (qualitative) · Allergy 21460-1 Lodgepole Pine+Pondersosa Pine IgE Ab · Allergy 21461-9 Lodgepole Pine+Pondersosa Pine IgE Ab RAST class (qualitative) · Allergy 21462-7 Pineapple IgG Ab RAST class (qualitative) · Allergy 21463-5 Plasminogen activator urokinase type (Tissue, qualitative) · Coagulation 21464-3 Plasmodium falciparum Ab (immunofluorescence) · Microbiology 21465-0 Plasmodium malariae Ab (immunofluorescence) · Microbiology 21466-8 Plasmodium ovale Ab (immunofluorescence) · Microbiology 21467-6 Plasmodium vivax Ab (immunofluorescence) · Microbiology 21468-4 Plum IgG Ab RAST class (qualitative) · Allergy 21469-2 Pollock IgE Ab RAST class (qualitative) · Allergy 21470-0 Pomegranate IgE Ab · Allergy 21471-8 Pomegranate IgE Ab RAST class (qualitative) · Allergy 21472-6 White Poplar IgE Ab · Allergy 21473-4 White Poplar IgE Ab RAST class (qualitative) · Allergy 21474-2 Pork IgG Ab RAST class (qualitative) · Allergy 21475-9 Potassium in 24 hour Urine · Chemistry 21476-7 Potato IgE Ab · Allergy 21477-5 Potato IgE Ab RAST class (qualitative) · Allergy 21478-3