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 128 of 2,187 · by category · by group · panels · answer lists · parts
Chlamydia trachomatis Ag (Stool, qualitative, immunofluorescence) · Microbiology 6352-9 Chlamydia trachomatis Ag (Tissue, qualitative, immunofluorescence) · Microbiology 6353-7 Chlamydia trachomatis Ag in Specimen (qualitative, immunoassay) · Microbiology 6354-5 Chlamydia trachomatis Ag in Specimen (qualitative, immunofluorescence) · Microbiology 6355-2 Chlamydia trachomatis DNA in Genital specimen (qualitative, naa with probe detection) · Microbiology 6356-0 Chlamydia trachomatis DNA (Urine, qualitative, naa with probe detection) · Microbiology 6357-8 Chlamydia trachomatis rRNA in Unspecified specimen (qualitative, dna probe) · Microbiology 6358-6 Clostridioides difficile toxin A (Stool, immunoassay) · Microbiology 6359-4 Clostridioides difficile toxin A in Specimen (immunoassay) · Microbiology 6360-2 Clostridioides difficile toxin A+B (immunoassay) · Microbiology 6361-0 Clostridioides difficile toxin A+B (Stool, qualitative, cytotoxin tissue culture assay) · Microbiology 6362-8 Clostridioides difficile toxin A+B (Stool, immunoassay) · Microbiology 6363-6 Clostridioides difficile toxin A+B in Specimen (immunoassay) · Microbiology 6364-4 Clostridioides difficile toxin B (Stool, immunoassay) · Microbiology 6365-1 Clostridioides difficile toxin B in Specimen (immunoassay) · Microbiology 6366-9 Clostridium tetani IgG Ab (immunoassay) · Microbiology 6367-7 Coccidioides immitis Ab (latex agglutination) · Microbiology 6368-5 Cryptococcus neoformans Ab (agglutination) · Microbiology 6369-3 Cryptococcus sp Ab (qualitative, immunofluorescence) · Microbiology 6370-1 Cryptosporidium sp Ag (Stool, qualitative, immunoassay) · Microbiology 6371-9 Cryptosporidium sp Ag (Stool, immunofluorescence) · Microbiology 6372-7 Taenia solium larva IgG Ab (CSF, qualitative, immunoblot) · Microbiology 6373-5 Taenia solium larva IgG Ab (qualitative, immunoblot) · Microbiology 6374-3 Cytomegalovirus Ag (Blood) · Microbiology 6375-0 Cytomegalovirus Ag (qualitative, immunoassay) · Microbiology 6376-8 Cytomegalovirus Ag (qualitative, immunofluorescence) · Microbiology 6377-6 Cytomegalovirus Ag (Urine) · Microbiology 6378-4 Cytomegalovirus Ag in Specimen (qualitative, immunoassay) · Microbiology 6379-2 Cytomegalovirus Ag in unspecified specimen · Microbiology 6380-0 Cytomegalovirus Ag in Specimen (qualitative, immunofluorescence) · Microbiology 6381-8 Dengue virus Ab · Microbiology 6382-6 Dengue virus Ab in unspecified specimen · Microbiology 6383-4 Dengue virus Ag (qualitative, immunofluorescence) · Microbiology 6384-2 Dengue virus Ag in Specimen (qualitative, immunofluorescence) · Microbiology 6385-9 Dengue virus DNA (qualitative, probe) · Microbiology 6386-7 Dengue virus DNA in Specimen (qualitative, probe) · Microbiology 6387-5 Eastern equine encephalitis virus Ag (qualitative, immunoassay) · Microbiology 6388-3 Eastern equine encephalitis virus Ag (qualitative, immunofluorescence) · Microbiology 6389-1 Echinococcus sp Ab (complement fixation) · Microbiology 6390-9 Echinococcus sp Ab (immunoassay) · Microbiology 6391-7 Echovirus 30 Ab (complement fixation) · Microbiology 6392-5 Echovirus 30 neutralizing antibody (neutralization test) · Microbiology 6393-3 Echovirus 40 Ab (complement fixation) · Microbiology 6394-1 Echovirus 40 neutralizing antibody (neutralization test) · Microbiology 6395-8 Entamoeba histolytica DNA in Specimen (qualitative, naa with probe detection) · Microbiology 6396-6 Entamoeba histolytica Ag (immunoassay) · Microbiology 6397-4 Entamoeba histolytica Ag (Stool, immunoassay) · Microbiology 6398-2 Entamoeba histolytica Ag in Specimen (immunoassay) · Microbiology 6399-0 Ehrlichia canis Ab (qualitative, immunoassay) · Microbiology 6400-6 Ehrlichia chaffeensis IgG Ab (qualitative, immunoassay) · Microbiology 6401-4