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 64 of 2,187 · by category · by group · panels · answer lists · parts
Inhaled oxygen flow rate · CLIN 3151-8 Inhaled oxygen mechanism Dose · CLIN 3152-6 Weight of 24 hour Specimen · SPEC 3153-4 Weight of Specimen · SPEC 3154-2 Weight of Unspecified specimen · SPEC 3155-9 Volume (Amniotic Fluid) · SPEC 3156-7 Volume (Blood) · SPEC 3157-5 Volume of 24 hour Body fluid · SPEC 3158-3 Volume · SPEC 3159-1 Volume (Semen) · FERT 3160-9 Volume of 24 hour Sputum · SPEC 3161-7 Volume of 24 hour Stool · SPEC 3162-5 Volume of 72 hour Stool · SPEC 3163-3 Volume of 24 hour Stool · SPEC 3164-1 Volume of 72 hour Stool · SPEC 3165-8 Volume of 24 hour Sweat · SPEC 3166-6 Volume of 24 hour Urine · SPEC 3167-4 Volume of 24 hour Urine · SPEC 3168-2 Volume of Specimen · SPEC 3169-0 Volume of 24 hour Specimen · SPEC 3170-8 Dry weight of 72 hour Stool · SPEC 3171-6 Time --post exercise · CLIN 3172-4 aPTT (Blood, coagulation assay) · Coagulation 3173-2 Antithrombin in Platelet poor plasma (chromogenic method) · Coagulation 3174-0 Antithrombin Ag in Platelet poor plasma (immunoassay) · Coagulation 3175-7 Antithrombin in Platelet poor plasma (chromogenic method) · Coagulation 3176-5 Antithrombin Ag in Platelet poor plasma (immunoassay) · Coagulation 3177-3 Bleeding time (duke method) · Coagulation 3178-1 Bleeding time (ivy method) · Coagulation 3179-9 Cardiolipin Ab (immunoassay) · Coagulation 3180-7 Cardiolipin IgG Ab (immunoassay) · Coagulation 3181-5 Cardiolipin IgM Ab (immunoassay) · Coagulation 3182-3 Clotting time (Blood, lee white method) · Coagulation 3183-1 Activated clotting time (ACT) (Blood, coagulation assay) · Coagulation 3184-9 Coagulation factor IX inhibitor in Platelet poor plasma (coagulation assay) · Coagulation 3185-6 Coagulation factor IX activity in Platelet poor plasma (coagulation assay) · Coagulation 3186-4 Coagulation factor IX activity actual/normal in Platelet poor plasma (coagulation assay) · Coagulation 3187-2 Coagulation factor IX activity in Platelet poor plasma (chromogenic method) · Coagulation 3188-0 Coagulation factor IX Ag in Platelet poor plasma (immunoassay) · Coagulation 3189-8 Coagulation factor IX Ag actual/normal in Platelet poor plasma (immunoassay) · Coagulation 3190-6 Coagulation factor V inhibitor in Platelet poor plasma (coagulation assay) · Coagulation 3191-4 Coagulation factor V activity in Platelet poor plasma (coagulation assay) · Coagulation 3192-2 Coagulation factor V activity actual/normal in Platelet poor plasma (coagulation assay) · Coagulation 3193-0 Coagulation factor V Ag in Platelet poor plasma (immunoassay) · Coagulation 3194-8 Coagulation factor V Ag actual/normal in Platelet poor plasma (immunoassay) · Coagulation 3195-5 Coagulation factor VII inhibitor in Platelet poor plasma (coagulation assay) · Coagulation 3196-3 Coagulation factor VII activity in Platelet poor plasma (coagulation assay) · Coagulation 3197-1 Coagulation factor VII activity actual/normal in Platelet poor plasma (coagulation assay) · Coagulation 3198-9 Coagulation factor VII activity in Platelet poor plasma (chromogenic method) · Coagulation 3199-7 Coagulation factor VII activity actual/normal in Platelet poor plasma (coagulation assay) · Coagulation 3200-3