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 40 of 2,187 · by category · by group · panels · answer lists · parts
Beta-2-Microglobulin (CSF) · Chemistry 1951-3 Beta-2-Microglobulin · Chemistry 1952-1 Beta-2-Microglobulin (Urine) · Chemistry 1953-9 Beta-N-acetylhexosaminidase · Chemistry 1954-7 Beta-N-acetylhexosaminidase (Tissue) · Chemistry 1955-4 Beta-N-acetylhexosaminidase.A · Chemistry 1956-2 Beta-N-acetylhexosaminidase.B · Chemistry 1957-0 Beta-N-acetylhexosaminidase.I · Chemistry 1958-8 Bicarbonate (Blood) · Chemistry 1959-6 Bicarbonate (Arterial Blood) · Chemistry 1960-4 Bicarbonate (Capillary Blood) · Chemistry 1961-2 Bicarbonate · Chemistry 1962-0 Bicarbonate · Chemistry 1963-8 Bicarbonate (Urine) · Chemistry 1964-6 Bile (Stool, qualitative) · Chemistry 1965-3 Bile acid in Exhaled gas · Chemistry 1966-1 Bile acid · Chemistry 1967-9 Bilirubin.direct · Chemistry 1968-7 Bilirubin.total renal clearance in 24 hour Urine and Serum or Plasma · Chemistry 1969-5 Bilirubin.delta · Chemistry 1970-3 Bilirubin.indirect · Chemistry 1971-1 Bilirubin.total (Amniotic Fluid) · Chemistry 1972-9 Bilirubin.total (CSF) · Chemistry 1973-7 Bilirubin.total (Body Fluid) · Chemistry 1974-5 Bilirubin.total · Chemistry 1975-2 Bilirubin.total (Stool, qualitative) · Chemistry 1976-0 Bilirubin.total (Urine, qualitative) · Chemistry 1977-8 Bilirubin.total (Urine) · Chemistry 1978-6 Biopterin in 24 hour Urine · Chemistry 1979-4 Biotin · Chemistry 1980-2 Biotinidase (Blood, qualitative) · Chemistry 1981-0 Biotinidase · Chemistry 1982-8 Bradykinin · Coagulation 1983-6 Bromide · Drug and toxicology 1984-4 Bromide (Urine) · Drug and toxicology 1985-1 C peptide · Chemistry 1986-9 C peptide (Urine) · Chemistry 1987-7 C reactive protein · Chemistry 1988-5 25-hydroxyvitamin D3 · Chemistry 1989-3 Cholecalciferol (Vit D3) · Chemistry 1990-1 Calciferol binding proteins · Chemistry 1991-9 Calcitonin · Chemistry 1992-7 Calcium renal clearance in 24 hour Urine and Serum or Plasma · Chemistry 1993-5 Calcium.ionized (Blood) · Chemistry 1994-3 Calcium.ionized · Chemistry 1995-0 Calcium (Blood) · Chemistry 1996-8 Calcium (CSF) · Chemistry 1997-6 Calcium in Dialysis fluid · Chemistry 1998-4 Calcium (Semen) · Chemistry 1999-2 Calcium · Chemistry 2000-8