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 34 of 2,187 · by category · by group · panels · answer lists · parts
1-Methylhistidine (qualitative) · Chemistry 1651-9 1-Methylhistidine · Chemistry 1652-7 1-Methylhistidine (Urine) · Chemistry 1653-5 1-Naphthalene (Urine) · Drug and toxicology 1654-3 11-Deoxy/11-Oxy steroids (Urine) · Chemistry 1655-0 11-Deoxycorticosterone · Chemistry 1656-8 11-Deoxycortisol · Chemistry 1657-6 11-Hydroxyandrostenedione · Chemistry 1658-4 11-Hydroxyandrosterone (Urine) · Chemistry 1659-2 11-Hydroxyetiocholanolone · Chemistry 1660-0 11-Ketoandrosterone · Chemistry 1661-8 11-Ketoetiocholanolone · Chemistry 1662-6 11-Oxycorticosterone · Chemistry 1663-4 17-Hydroxycorticosteroids (Amniotic Fluid) · Chemistry 1664-2 17-Hydroxycorticosteroids · Chemistry 1665-9 17-Hydroxycorticosteroids (Urine) · Chemistry 1666-7 17-Hydroxyketosteroids (Urine) · Chemistry 1667-5 17-Hydroxyprogesterone · Chemistry 1668-3 17-Hydroxyprogesterone · Chemistry 1669-1 17-Hydroxyprogesterone (Urine) · Chemistry 1670-9 17-Ketogenic steroids (Blood) · Chemistry 1671-7 17-Ketogenic steroids (Blood) · Chemistry 1672-5 17-Ketogenic steroids in 24 hour Urine · Chemistry 1673-3 18-Hydroxycorticosterone · Chemistry 1674-1 2,3-Diphosphoglycerate (Red Blood Cells) · Chemistry 1675-8 2,3-Diphosphoglycerate · Chemistry 1676-6 Alpha hydroxybutyrate dehydrogenase · Chemistry 1677-4 20-Hydroxyprogesterone · Chemistry 1678-2 24r-Hydroxycalcidiol · Chemistry 1679-0 3-Alpha-Androstanediol glucuronide · Chemistry 1680-8 Beta hydroxybutyrate dehydrogenase (Blood) · Chemistry 1681-6 Beta hydroxybutyrate dehydrogenase · Chemistry 1682-4 3-Hydroxyisovalerate (Urine) · Chemistry 1683-2 3-Methoxy-4-Hydroxyphenylglycol (Urine) · Chemistry 1684-0 3-Methylhistidine (qualitative) · Chemistry 1685-7 3-Methylhistidine · Chemistry 1686-5 3-Methylhistidine (Urine) · Chemistry 1687-3 4-Pyridoxate · Chemistry 1688-1 5'-Nucleotidase (Amniotic Fluid) · Chemistry 1689-9 5'-Nucleotidase · Chemistry 1690-7 5,10-Methylenetetrahydrofolate reductase · Chemistry 1691-5 5-Hydroxyindoleacetate (CSF) · Chemistry 1692-3 5-Hydroxyindoleacetate · Chemistry 1693-1 5-Hydroxyindoleacetate (Urine) · Chemistry 1694-9 5-Hydroxyindoleacetate in 24 hour Urine · Chemistry 1695-6 5-Methyltetrahydrofolate homocysteine methyltransferase · Chemistry 1696-4 6-Phosphogluconate dehydrogenase (Red Blood Cells) · Chemistry 1697-2 8-Hydroxyamoxapine · Drug and toxicology 1698-0 Alpha-L-iduronidase (Tissue) · Chemistry 1699-8 Acetaldehyde (Blood) · Drug and toxicology 1700-4