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 62 of 2,187 · by category · by group · panels · answer lists · parts
Triiodothyronine (T3) Free · Chemistry 3051-0 Triiodothyronine (T3).reverse · Chemistry 3052-8 Triiodothyronine (T3) · Chemistry 3053-6 Triiodothyronine (T3).true · Chemistry 3054-4 Triiodothyronine (T3)/Triiodothyronine (T3) uptake index · Chemistry 3055-1 Trimethylamine (Urine) · Chemistry 3056-9 Triokinase · Chemistry 3057-7 Triosephosphate isomerase · Chemistry 3058-5 Trypsin in Duodenal fluid · Chemistry 3059-3 Trypsin · Chemistry 3060-1 Trypsin (Stool, qualitative) · Chemistry 3061-9 Trypsin in 24 hour Stool · Chemistry 3062-7 Trypsin (Stool) · Chemistry 3063-5 Trypsin+Trypsinogen · Chemistry 3064-3 Trypsinogen (qualitative) · Chemistry 3065-0 Trypsinogen · Chemistry 3066-8 Trypsinogen I Free · Chemistry 3067-6 Tryptophan (CSF) · Chemistry 3068-4 Tryptophan (qualitative) · Chemistry 3069-2 Tryptophan · Chemistry 3070-0 Tryptophan · Chemistry 3071-8 Tryptophan (Urine) · Chemistry 3072-6 Tryptophan Free · Chemistry 3073-4 Tumor necrosis factor.alpha · Chemistry 3074-2 Tyramine (CSF) · Drug and toxicology 3075-9 Tyramine (Urine) · Drug and toxicology 3076-7 Tyrosine (Blood) · Chemistry 3077-5 Tyrosine (qualitative) · Chemistry 3078-3 Tyrosine · Chemistry 3079-1 Tyrosine (Urine) · Chemistry 3080-9 Tyrosine in 24 hour Urine · Chemistry 3081-7 Tyrosine aminotransferase · Chemistry 3082-5 Urate (Amniotic Fluid) · Chemistry 3083-3 Urate · Chemistry 3084-1 Urate (Synovial Fluid) · Chemistry 3085-8 Urate (Urine) · Chemistry 3086-6 Urate in 24 hour Urine · Chemistry 3087-4 Urate renal clearance in 24 hour Urine and Serum or Plasma · Chemistry 3088-2 Urate/Creatinine (Urine) · Chemistry 3089-0 Urea (Amniotic Fluid) · Chemistry 3090-8 Urea · Chemistry 3091-6 Urea (Urine) · Chemistry 3092-4 Urea nitrogen (Body Fluid) · Chemistry 3093-2 Urea nitrogen · Chemistry 3094-0 Urea nitrogen (Urine) · Chemistry 3095-7 Urea nitrogen in 24 hour Urine · Chemistry 3096-5 Urea nitrogen/Creatinine · Chemistry 3097-3 Urea renal clearance in 24 hour Urine and Serum or Plasma · Chemistry 3098-1 Uridine diphosphate glucose-4-Epimerase · Chemistry 3099-9 Uridyl transferase (Red Blood Cells) · Chemistry 3100-5