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 394 of 2,187 · by category · by group · panels · answer lists · parts
Diffusion capacity/Alveolar volume Predicted · Pulmonary 19915-8 Diffusion capacity/Alveolar volume · Pulmonary 19916-6 Diffusion capacity adjusted to body conditions (single breath.carbon monoxide+helium) · Pulmonary 19917-4 Diffusion capacity adjusted to body conditions · Pulmonary 19918-2 Endotracheal suction catheter types · Pulmonary 19919-0 Expiration setting Ventilator · Pulmonary 19920-8 Expiratory reserve (helium rebreathing) · Pulmonary 19921-6 Expiratory reserve (helium single breath) · Pulmonary 19922-4 Expiratory reserve Predicted · Pulmonary 19923-2 Expiratory reserve · Pulmonary 19924-0 FEV1/FVC Predicted · Pulmonary 19925-7 FEV1/FVC · Pulmonary 19926-5 Gas flow FEV 25%-75% · Pulmonary 19927-3 Gas delivery source Respiratory system · Pulmonary 19928-1 Gas flow Respiratory system airway (rebreathing) · Pulmonary 19929-9 Gas flow Respiratory system airway · Pulmonary 19930-7 Peak inspiratory gas flow setting Ventilator · Pulmonary 19931-5 Constant gas flow setting Ventilator · Pulmonary 19932-3 Constant gas flow Ventilator --baseline setting · Pulmonary 19933-1 Delivered gas flow setting Ventilator · Pulmonary 19934-9 Maximum expiratory gas flow Respiratory system airway (peak flow meter) · Pulmonary 19935-6 Maximum gas flow Respiratory system airway · Pulmonary 19936-4 Maximum expiratory gas flow Respiratory system airway (peak flow meter --post therapy) · Pulmonary 19937-2 Maximum expiratory gas flow Respiratory system airway --post therapy · Pulmonary 19938-0 Minimum gas flow Respiratory system airway (peak flow meter --pre therapy) · Pulmonary 19939-8 Minimum gas flow Respiratory system airway --pre therapy · Pulmonary 19940-6 Oxygen gas flow Oxygen delivery system · Pulmonary 19941-4 Oxygen gas flow setting Oxymiser · Pulmonary 19942-2 Secondary gas flow setting Ventilator · Pulmonary 19943-0 Gas flow^at 25-75% of forced expiration: VRat: Pt: Respiratory system.airway: Qn: Predicted · Pulmonary 19944-8 Gas flow FEV 25%-75% airway · Pulmonary 19945-5 Maximum heart rate setting Apnea Monitor Alarm · Pulmonary 19946-3 Heart rate minimum setting Apnea Monitor Alarm · Pulmonary 19947-1 Fractional oxyhemoglobin in 8 hour maximum (pulse oximetry) · Pulmonary 19948-9 Oxyhemoglobin/Hemoglobin.total (8 hour maximum) (Arterial Blood) · Pulmonary 19949-7 Fractional oxyhemoglobin in 8 hour minimum (pulse oximetry) · Pulmonary 19950-5 Oxyhemoglobin/Hemoglobin.total (8 hour minimum) (Arterial Blood) · Pulmonary 19951-3 Fractional oxyhemoglobin Preductal (Blood, pulse oximetry) · Pulmonary 19952-1 Fractional oxyhemoglobin Preductal (Blood) · Pulmonary 19953-9 Fractional oxyhemoglobin Postductal (Blood, pulse oximetry) · Pulmonary 19954-7 Fractional oxyhemoglobin Postductal (Blood) · Pulmonary 19955-4 Fractional oxyhemoglobin (pulse oximetry --during bronchodilation) · Pulmonary 19956-2 Fractional oxyhemoglobin --during bronchodilation (Arterial Blood) · Pulmonary 19957-0 Fractional oxyhemoglobin (pulse oximetry --during treatment) · Pulmonary 19958-8 Fractional oxyhemoglobin --during treatment (Arterial Blood) · Pulmonary 19959-6 Fractional oxyhemoglobin (pulse oximetry --on room air) · Pulmonary 19960-4 Fractional oxyhemoglobin --on room air (Arterial Blood) · Pulmonary 19961-2 Fractional oxyhemoglobin (pulse oximetry --post bronchodilation) · Pulmonary 19962-0 Fractional oxyhemoglobin --post bronchodilation (Arterial Blood) · Pulmonary 19963-8 Fractional oxyhemoglobin (pulse oximetry --post treatment) · Pulmonary 19964-6