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 39 of 2,187 · by category · by group · panels · answer lists · parts
Arylsulfatase · Chemistry 1901-8 Ascorbate (Blood) · Chemistry 1902-6 Ascorbate · Chemistry 1903-4 Ascorbate (Urine, qualitative) · Chemistry 1904-2 Ascorbate in 24 hour Urine · Chemistry 1905-9 Asparagine (CSF) · Chemistry 1906-7 Asparagine (qualitative) · Chemistry 1907-5 Asparagine · Chemistry 1908-3 Asparagine (Urine) · Chemistry 1909-1 Asparagine in 24 hour Urine · Chemistry 1910-9 Aspartate (CSF) · Chemistry 1911-7 Aspartate (qualitative) · Chemistry 1912-5 Aspartate · Chemistry 1913-3 Aspartate (Urine) · Chemistry 1914-1 Aspartate in 24 hour Urine · Chemistry 1915-8 Aspartate aminotransferase/Alanine aminotransferase · Chemistry 1916-6 Aspartate aminotransferase (Amniotic Fluid) · Chemistry 1917-4 Aspartate aminotransferase (CSF) · Chemistry 1918-2 Aspartate aminotransferase (Body Fluid) · Chemistry 1919-0 Aspartate aminotransferase · Chemistry 1920-8 Atrial natriuretic factor (Arterial Blood) · Chemistry 1921-6 Base deficit (Arterial Blood) · Chemistry 1922-4 Base deficit (Capillary Blood) · Chemistry 1923-2 Base deficit (Venous Blood) · Chemistry 1924-0 Base excess (Arterial Blood, calculation) · Chemistry 1925-7 Base excess (Capillary Blood, calculation) · Chemistry 1926-5 Base excess (Venous Blood, calculation) · Chemistry 1927-3 Immunoglobulin light chains (Urine, qualitative) · Chemistry 1928-1 Immunoglobulin light chains (Urine) · Chemistry 1929-9 Benzoate · Drug and toxicology 1930-7 Beta alanine (qualitative) · Chemistry 1931-5 Beta alanine · Chemistry 1932-3 Beta alanine (Urine) · Chemistry 1933-1 Beta aminoisobutyrate (qualitative) · Chemistry 1934-9 Beta aminoisobutyrate · Chemistry 1935-6 Beta aminoisobutyrate (Urine) · Chemistry 1936-4 Beta endorphin · Chemistry 1937-2 Beta fructofuranosidase (Red Blood Cells) · Chemistry 1938-0 Beta fructofuranosidase · Chemistry 1939-8 Beta galactosidase (Red Blood Cells) · Chemistry 1940-6 Beta galactosidase · Chemistry 1941-4 Beta galactosidase (Tissue) · Chemistry 1942-2 Glucosylceramidase in Leukocytes · Chemistry 1943-0 Beta glucuronidase (Tissue) · Chemistry 1944-8 Beta glucuronidase (Urine) · Chemistry 1945-5 Beta hydroxybutyrate (CSF) · Chemistry 1946-3 Beta hydroxybutyrate (Urine) · Chemistry 1947-1 Beta hydroxybutyrate dehydrogenase · Chemistry 1948-9 Beta lipotropin · Chemistry 1949-7 Beta melanocyte stimulating hormone · Chemistry 1950-5