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 112 of 2,187 · by category · by group · panels · answer lists · parts
cyCD3 cells/100 cells (Blood) · Cell markers 5551-7 cyCD79 cells/100 cells (Blood) · Cell markers 5552-5 cyIg cells/100 cells (Blood) · Cell markers 5553-3 cyIg mu cells/100 cells (Blood) · Cell markers 5554-1 FMC7 cells/100 cells (Blood) · Cell markers 5555-8 GPA (Blood) · Cell markers 5556-6 HLA-DR in Leukocytes · HLA typing 5557-4 Myeloperoxidase cells/100 cells in Unspecified specimen · Cell markers 5558-2 RFD9 in Leukocytes · Cell markers 5559-0 SmIg · Cell markers 5560-8 SmIg kappa · Cell markers 5561-6 SmIg lambda · Cell markers 5562-4 SmIg-CD79 · Cell markers 5563-2 TCR-CD3 · Cell markers 5564-0 Terminal deoxyribonucleotidyl transferase in Leukocytes · Cell markers 5565-7 Acetone in Exhaled gas (qualitative) · Drug and toxicology 5566-5 Acetone (qualitative) · Drug and toxicology 5567-3 Acetone · Drug and toxicology 5568-1 Acetone (Urine, qualitative) · Drug and toxicology 5569-9 Acetone (Urine) · Drug and toxicology 5570-7 Acrylonitrile (Blood) · Drug and toxicology 5571-5 Aluminum in Dialysis fluid · Drug and toxicology 5572-3 Aluminum (Hair) · Drug and toxicology 5573-1 Aluminum · Drug and toxicology 5574-9 Aluminum (Red Blood Cells) · Drug and toxicology 5575-6 Aluminum · Drug and toxicology 5576-4 Aluminum (Urine) · Drug and toxicology 5577-2 Antimony (Blood) · Drug and toxicology 5578-0 Antimony (Hair) · Drug and toxicology 5579-8 Antimony · Drug and toxicology 5580-6 Antimony (Urine) · Drug and toxicology 5581-4 Arsenic (Blood, qualitative) · Drug and toxicology 5582-2 Arsenic (Blood) · Drug and toxicology 5583-0 Arsenic (Hair) · Drug and toxicology 5584-8 Arsenic · Drug and toxicology 5585-5 Arsenic (Urine) · Drug and toxicology 5586-3 Arsenic in 24 hour Urine · Drug and toxicology 5587-1 Barium (qualitative) · Drug and toxicology 5588-9 Barium · Drug and toxicology 5589-7 Barium (Urine) · Drug and toxicology 5590-5 Benzene (qualitative) · Drug and toxicology 5591-3 Benzene · Drug and toxicology 5592-1 Beryllium (qualitative) · Drug and toxicology 5593-9 Beryllium · Drug and toxicology 5594-7 Beryllium (Urine) · Drug and toxicology 5595-4 Beryllium in 24 hour Urine · Drug and toxicology 5596-2 Bismuth · Drug and toxicology 5597-0 Bismuth (Urine) · Drug and toxicology 5598-8 Boldenone (Urine, qualitative) · Drug and toxicology 5599-6 Boldenone (Urine) · Drug and toxicology 5600-2