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 449 of 2,187 · by category · by group · panels · answer lists · parts
Ornithine/Creatinine (Urine) · Chemistry 22682-9 Phenylalanine/Creatinine (Urine) · Chemistry 22683-7 Serine/Creatinine (Urine) · Chemistry 22684-5 Tyrosine/Creatinine (Urine) · Chemistry 22685-2 Protoporphyrin in 24 hour Urine · Chemistry 22686-0 Cystine/Creatinine (Urine) · Chemistry 22687-8 Threonine/Creatinine (Urine) · Chemistry 22688-6 Zinc in 24 hour Urine · Drug and toxicology 22689-4 Proline/Creatinine (Urine) · Chemistry 22690-2 Aspartate/Creatinine (Urine) · Chemistry 22691-0 Valine/Creatinine (Urine) · Chemistry 22692-8 Leucine/Creatinine (Urine) · Chemistry 22693-6 Citrulline/Creatinine (Urine) · Chemistry 22694-4 Carnitine/Creatinine (Urine) · Chemistry 22695-1 Cadmium/Creatinine (Urine) · Drug and toxicology 22696-9 Arginine/Creatinine (Urine) · Chemistry 22697-7 Alanine/Creatinine (Urine) · Chemistry 22698-5 Alloisoleucine/Creatinine (Urine) · Chemistry 22699-3 Urea (Urine) · Chemistry 22700-9 Salicylates (Urine) · Drug and toxicology 22701-7 Ketones (Urine, test strip) · Urinalysis 22702-5 Histidine/Creatinine (Urine) · Chemistry 22703-3 Carnitine free (C0)/Creatinine (Urine) · Chemistry 22704-1 Glucose (Urine, test strip) · Urinalysis 22705-8 Isoleucine/Creatinine (Urine) · Chemistry 22706-6 Homocystine/Creatinine (Urine) · Chemistry 22707-4 Homovanillate/Creatinine (Urine) · Chemistry 22708-2 Glycine/Creatinine (Urine) · Chemistry 22709-0 Glutamine/Creatinine (Urine) · Chemistry 22710-8 Glutamate/Creatinine (Urine) · Chemistry 22711-6 Adenosine monophosphate.cyclic (Urine) · Chemistry 22712-4 Lysine in Specimen · Chemistry 22713-2 Isoleucine in Specimen · Chemistry 22714-0 Homocystine in Specimen · Chemistry 22715-7 Methionine in Specimen · Chemistry 22716-5 Histidine in Specimen · Chemistry 22717-3 Glycine in Specimen · Chemistry 22718-1 Leucine in Specimen · Chemistry 22719-9 Glutamine in Specimen · Chemistry 22720-7 Glutamate in Specimen · Chemistry 22721-5 Citrulline in Specimen · Chemistry 22722-3 Aspartate in Specimen · Chemistry 22723-1 Alanine in Specimen · Chemistry 22724-9 Ornithine in Specimen · Chemistry 22725-6 Creatinine in Specimen · Chemistry 22726-4 Arginine in Specimen · Chemistry 22727-2 Cystine in Specimen · Chemistry 22728-0 Valine in Specimen · Chemistry 22729-8 Alloisoleucine in Specimen · Chemistry 22730-6 Triglyceride in Specimen · Chemistry 22731-4