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 56 of 2,187 · by category · by group · panels · answer lists · parts
pH (Peritoneal Fluid) · Chemistry 2751-6 pH (Semen) · Chemistry 2752-4 pH · Chemistry 2753-2 pH (Synovial Fluid) · Chemistry 2754-0 pH (Stool) · Chemistry 2755-7 pH (Urine) · Chemistry 2756-5 Phenol (Blood) · Drug and toxicology 2757-3 Phenol (Urine) · Drug and toxicology 2758-1 Phenols (Urine) · Drug and toxicology 2759-9 Phenolsulphonphthalein (Urine) · Drug and toxicology 2760-7 Phenylketones (Blood, qualitative) · Chemistry 2761-5 Phenylalanine (Blood) · Chemistry 2762-3 Phenylalanine (CSF) · Chemistry 2763-1 Phenylalanine (qualitative) · Chemistry 2764-9 Phenylalanine · Chemistry 2765-6 Phenylalanine (Urine) · Chemistry 2766-4 Phenylalanine in 24 hour Urine · Chemistry 2767-2 Phenylalanine/Tyrosine · Chemistry 2768-0 Phenylketones (Urine, qualitative) · Chemistry 2769-8 Phenylpyruvate (Blood) · Chemistry 2770-6 Phenylpyruvate · Chemistry 2771-4 Phenylpyruvate (Urine, qualitative) · Chemistry 2772-2 Phenylpyruvate (Urine) · Chemistry 2773-0 Phosphate (Blood) · Chemistry 2774-8 Phosphate in Dialysis fluid · Chemistry 2775-5 Phosphate renal clearance in 24 hour Urine and Serum or Plasma · Chemistry 2776-3 Phosphate · Chemistry 2777-1 Phosphate (Urine) · Chemistry 2778-9 Phosphate in 24 hour Urine · Chemistry 2779-7 Phosphate (Urine, qualitative) · Chemistry 2780-5 Phosphate (Urine) · Chemistry 2781-3 Phosphate in 24 hour Urine · Chemistry 2782-1 Lecithin · Chemistry 2783-9 Phosphatidylcholine.saturated (Amniotic Fluid) · Chemistry 2784-7 Phosphatidylglycerol (Amniotic Fluid, qualitative) · Chemistry 2785-4 Phosphatidylglycerol (Amniotic Fluid) · Chemistry 2786-2 Phosphatidylinositol · Chemistry 2787-0 Phosphoenolpyruvate carboxykinase · Chemistry 2788-8 Phosphoethanolamine · Chemistry 2789-6 Phosphoethanolamine (Urine) · Chemistry 2790-4 Phosphofructokinase (Blood) · Chemistry 2791-2 Phosphofructokinase · Chemistry 2792-0 Phosphofructokinase F subunit/Phosphofructokinase.total in Platelets · Chemistry 2793-8 Phosphofructokinase F subunit/Phosphofructokinase.total in Leukocytes · Chemistry 2794-6 Phosphofructokinase L subunit/Phosphofructokinase.total (Red Blood Cells) · Chemistry 2795-3 Phosphofructokinase M subunit/Phosphofructokinase.total (Red Blood Cells) · Chemistry 2796-1 Phosphoglucomutase · Chemistry 2797-9 Phosphoglycerate kinase · Chemistry 2798-7 Phosphoglyceromutase · Chemistry 2799-5 Glucose phosphate isomerase · Chemistry 2800-1