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 139 of 2,187 · by category · by group · panels · answer lists · parts
Insulin Free · Chemistry 6901-3 Methadone (qualitative) · Drug and toxicology 6902-1 Norverapamil · Drug and toxicology 6903-9 Phenothiazine (qualitative) · Drug and toxicology 6904-7 Propafenone · Drug and toxicology 6905-4 Sertraline · Drug and toxicology 6906-2 sulfADIAZINE · Drug and toxicology 6907-0 Complement C4 (Body Fluid) · Hematology and blood count 6908-8 Mucin clot Qualitative (Synovial Fluid, qualitative) · Hematology and blood count 6909-6 Brucella abortus IgA Ab · Microbiology 6910-4 Brucella abortus IgG Ab · Microbiology 6911-2 Chlamydophila pneumoniae IgA Ab (immunofluorescence) · Microbiology 6912-0 Chlamydophila pneumoniae IgG Ab (immunofluorescence) · Microbiology 6913-8 Chlamydophila pneumoniae IgM Ab (immunofluorescence) · Microbiology 6914-6 Chlamydophila psittaci IgA Ab (immunofluorescence) · Microbiology 6915-3 Chlamydophila psittaci IgG Ab (immunofluorescence) · Microbiology 6916-1 Chlamydophila psittaci IgM Ab (immunofluorescence) · Microbiology 6917-9 Chlamydia trachomatis IgA Ab (immunofluorescence) · Microbiology 6918-7 Chlamydia trachomatis IgG Ab (immunofluorescence) · Microbiology 6919-5 Chlamydia trachomatis IgM Ab (immunofluorescence) · Microbiology 6920-3 Cytomegalovirus IgG Ab (CSF, immunoassay) · Microbiology 6921-1 Echovirus 7 Ab (complement fixation) · Microbiology 6922-9 Adrenal cortex Ab (immunofluorescence) · Serology 6923-7 Gliadin IgA Ab · Serology 6924-5 Ganglioside GM1 IgG Ab · Serology 6925-2 Ganglioside GM1 IgM Ab · Serology 6926-0 Platelet IgG Ab (qualitative, flow cytometry (fc)) · Serology 6927-8 Rheumatoid factor (immunoassay) · Serology 6928-6 Aluminum in 24 hour Urine · Drug and toxicology 6929-4 Psilocybin (Urine) · Drug and toxicology 6930-2 Silver in 24 hour Urine · Drug and toxicology 6931-0 Penicillin (minimum inhibitory concentration (mic)) · Antibiotic susceptibility 6932-8 Streptomycin (mic.high potency) · Antibiotic susceptibility 6933-6 RAST class (qualitative) · Allergy 6934-4 Alpha aminoadipate in 24 hour Urine · Chemistry 6935-1 Deoxypyridinoline in 2 hour Urine · Chemistry 6936-9 Deoxypyridinoline in 24 hour Urine · Chemistry 6937-7 IgA (oral fluid) (Saliva) · Chemistry 6938-5 IgA subclass 2 · Chemistry 6939-3 Potassium in unspecified time Stool · Chemistry 6940-1 Albumin in 24 hour Urine (electrophoresis) · Chemistry 6941-9 Albumin (Urine, electrophoresis) · Chemistry 6942-7 Acetohexamide in Specimen · Drug and toxicology 6943-5 glipiZIDE in Specimen · Drug and toxicology 6944-3 glyBURIDE in Specimen · Drug and toxicology 6945-0 Imipramine in Specimen · Drug and toxicology 6946-8 ISOtretinoin · Drug and toxicology 6947-6 lamoTRIgine · Drug and toxicology 6948-4 Metaproterenol · Drug and toxicology 6949-2 raNITIdine · Drug and toxicology 6950-0