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 92 of 2,187 · by category · by group · panels · answer lists · parts
Hemoglobin A2/Hemoglobin.total · Hematology and blood count 4551-8 Hemoglobin A2/Hemoglobin.total (electrophoresis) · Hematology and blood count 4552-6 Hemoglobin A2/Hemoglobin.total (electrophoresis acid (ph 6.3)) · Hematology and blood count 4553-4 Hemoglobin A2/Hemoglobin.total (electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4554-2 Hemoglobin A3/Hemoglobin.total · Hematology and blood count 4555-9 Hemoglobin Abruzzo (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4556-7 Hemoglobin Abruzzo (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4557-5 Hemoglobin Barts (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4558-3 Hemoglobin Barts (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4559-1 Hemoglobin Bethesda (qualitative) · Hematology and blood count 4560-9 Hemoglobin C/Hemoglobin.total (electrophoresis acid (ph 6.3)) · Hematology and blood count 4561-7 Hemoglobin C/Hemoglobin.total (electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4562-5 Hemoglobin C/Hemoglobin.total · Hematology and blood count 4563-3 Hemoglobin C - Harlem (qualitative) · Hematology and blood count 4564-1 Hemoglobin Chesapeake (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4565-8 Hemoglobin Chesapeake (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4566-6 Hemoglobin Constant Spring (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4567-4 Hemoglobin Constant Spring (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4568-2 Hemoglobin D/Hemoglobin.total · Hematology and blood count 4569-0 Hemoglobin D - Punjab (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4570-8 Hemoglobin D - Punjab (electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4571-6 Hemoglobin Denver (qualitative) · Hematology and blood count 4572-4 Hemoglobin E/Hemoglobin.total (electrophoresis acid (ph 6.3)) · Hematology and blood count 4573-2 Hemoglobin E/Hemoglobin.total (electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4574-0 Hemoglobin E/Hemoglobin.total · Hematology and blood count 4575-7 Hemoglobin F/Hemoglobin.total · Hematology and blood count 4576-5 Hemoglobin F - Texas (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4577-3 Hemoglobin F - Texas (electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4578-1 Hemoglobin F (qualitative) · Hematology and blood count 4579-9 Hemoglobin F1/Hemoglobin.total · Hematology and blood count 4580-7 Hemoglobin G - Coushatta (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4581-5 Hemoglobin G - Coushatta (electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4582-3 Hemoglobin G - Georgia (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4583-1 Hemoglobin G - Georgia (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4584-9 Hemoglobin G - Philadelphia (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4585-6 Hemoglobin G - Philadelphia (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4586-4 Hemoglobin H/Hemoglobin.total (electrophoresis) · Hematology and blood count 4587-2 Hemoglobin H/Hemoglobin.total · Hematology and blood count 4588-0 Hemoglobin Hasharon (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4589-8 Hemoglobin Hasharon (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4590-6 Hemoglobin Hope (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4591-4 Hemoglobin Hope (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4592-2 Hemoglobin I (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4593-0 Hemoglobin I (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4594-8 Hemoglobin J - Baltimore (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4595-5 Hemoglobin J - Baltimore (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4596-3 Hemoglobin J - Capetown (qualitative) · Hematology and blood count 4597-1 Hemoglobin J - Oxford (qualitative, electrophoresis acid (ph 6.3)) · Hematology and blood count 4598-9 Hemoglobin J - Oxford (qualitative, electrophoresis alkaline (ph 8.9)) · Hematology and blood count 4599-7 Hemoglobin Kansas (qualitative) · Hematology and blood count 4600-3