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 94 of 2,187 · by category · by group · panels · answer lists · parts
Interleukin 2 · Chemistry 4651-6 Interleukin 3 · Chemistry 4652-4 Interleukin 4 · Chemistry 4653-2 Interleukin 5 · Chemistry 4654-0 Interleukin 6 · Chemistry 4655-7 Interleukin 7 · Chemistry 4656-5 Kallikrein (Plasma) · Hematology and blood count 4657-3 Kallikrein Tissue type (Plasma) · Hematology and blood count 4658-1 Leukocyte phosphatase in Leukocytes · Hematology and blood count 4659-9 Leukocyte.detection Ab · Hematology and blood count 4660-7 Lupus erythematosus factor · Serology 4661-5 Lymphocytes+Monocytes/Leukocytes · Hematology and blood count 4662-3 Lymphocytotoxicity without titration · Hematology and blood count 4663-1 Lymphocytotoxicity with titration · Hematology and blood count 4664-9 Lysozyme · Chemistry 4665-6 Osmotic fragility (qualitative) · Hematology and blood count 4666-4 Osmotic fragility (Red Blood Cells) · Hematology and blood count 4667-2 Plasminogen Ag in Platelet poor plasma · Coagulation 4668-0 Prekallikrein (Fletcher Factor) in Platelet poor plasma · Coagulation 4669-8 Thrombomodulin factor B (Serum Or Plasma) · Hematology and blood count 4670-6 Protein C · Coagulation 4671-4 Protein C Ag in Platelet poor plasma · Coagulation 4672-2 HLA-B27 from donor (Blood, qualitative) · HLA typing 4673-0 Protein C inhibitor in Platelet poor plasma (immunologic method) · Hematology and blood count 4674-8 HLA-B35 from donor (Blood, qualitative) · HLA typing 4675-5 HLA-B35 (Blood, qualitative) · HLA typing 4676-3 Protein S Free Ag in Platelet poor plasma (immunoassay) · Coagulation 4677-1 Protein S in Platelet poor plasma (coagulation assay) · Coagulation 4678-9 Reticulocytes/Erythrocytes · Hematology and blood count 4679-7 von Willebrand factor (vWf) ristocetin cofactor in Platelet poor plasma · Coagulation 4680-5 Streptokinase (Plasma) · Hematology and blood count 4681-3 Streptokinase (Serum) · Hematology and blood count 4682-1 Sulfhemoglobin (Blood) · Chemistry 4683-9 Sulfhemoglobin (Blood, qualitative) · Chemistry 4684-7 Sulfhemoglobin/Hemoglobin.total (Blood) · Chemistry 4685-4 Thromboglobulin (Plasma) · Hematology and blood count 4686-2 Thromboglobulin beta · Hematology and blood count 4687-0 Thrombomodulin · Hematology and blood count 4688-8 Verdohemoglobin · Hematology and blood count 4689-6 Viscosity (Blood) · SPEC 4690-4 Viscosity · SPEC 4691-2 HLA Ag (Tissue) · HLA typing 4692-0 HLA Ag absent · HLA typing 4693-8 HLA Ag present · HLA typing 4694-6 HLA-A19 in Donor (qualitative) · HLA typing 4695-3 HLA-A19 (qualitative) · HLA typing 4696-1 HLA-A33(19) in Donor (qualitative) · HLA typing 4697-9 HLA-A33(19) (qualitative) · HLA typing 4698-7 HLA-A34(10) in Donor (qualitative) · HLA typing 4699-5 HLA-A34(10) (qualitative) · HLA typing 4700-1