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 50 of 2,187 · by category · by group · panels · answer lists · parts
Hydroxyproline (Urine) · Chemistry 2451-3 Hypoxanthine (Body Fluid) · Chemistry 2452-1 Hypoxanthine · Chemistry 2453-9 Hypoxanthine phosphoribosyltransferase (Red Blood Cells) · Chemistry 2454-7 Hypoxanthine phosphoribosyltransferase (Tissue) · Chemistry 2455-4 Iduronate-2-Sulfatase (Tissue) · Chemistry 2456-2 IgA (CSF) · Chemistry 2457-0 IgA · Chemistry 2458-8 IgA.monoclonal · Chemistry 2459-6 IgD · Chemistry 2460-4 IgD.monoclonal · Chemistry 2461-2 IgE · Chemistry 2462-0 IgE.monoclonal · Chemistry 2463-8 IgG (CSF) · Chemistry 2464-6 IgG · Chemistry 2465-3 IgG subclass 1 · Chemistry 2466-1 IgG subclass 2 · Chemistry 2467-9 IgG subclass 3 · Chemistry 2468-7 IgG subclass 4 · Chemistry 2469-5 IgG/Albumin (CSF) · Chemistry 2470-3 IgM (CSF) · Chemistry 2471-1 IgM · Chemistry 2472-9 IgM.monoclonal · Chemistry 2473-7 Indicans (Urine, qualitative) · Chemistry 2474-5 Indicans (Urine) · Chemistry 2475-2 Indolamine · Chemistry 2476-0 Indole · Chemistry 2477-8 Inhibin · Chemistry 2478-6 Inosine · Chemistry 2479-4 Inositol Free · Chemistry 2480-2 Insulin Ab (qualitative) · Serology 2481-0 Insulin Ab · Serology 2482-8 Insulin-like growth factor binding protein 3 · Chemistry 2483-6 Insulin-like growth factor-I · Chemistry 2484-4 Insulin-like growth factor-II · Chemistry 2485-1 Somatomedins · Chemistry 2486-9 Inter alpha trypsin inhibitor · Chemistry 2487-7 Intrinsic factor · Chemistry 2488-5 Intrinsic factor blocking Ab · Chemistry 2489-3 Inulin · Drug and toxicology 2490-1 Inulin renal clearance in 24 hour Urine and Serum or Plasma · Drug and toxicology 2491-9 Iodine in 24 hour Urine · Chemistry 2492-7 Iodine Free (Urine) · Chemistry 2493-5 Iodine · Chemistry 2494-3 Iodine (Urine) · Chemistry 2495-0 Iodohippuran renal clearance in 24 hour Urine and Serum or Plasma · Chemistry 2496-8 Iron (Hair) · Chemistry 2497-6 Iron · Chemistry 2498-4 Iron in 24 hour Urine · Chemistry 2499-2 Iron binding capacity · Chemistry 2500-7