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 395 of 2,187 · by category · by group · panels · answer lists · parts
Fractional oxyhemoglobin --post treatment (Arterial Blood) · Pulmonary 19965-3 Fractional oxyhemoglobin (pulse oximetry --pre bronchodilation) · Pulmonary 19966-1 Fractional oxyhemoglobin --pre bronchodilation (Arterial Blood) · Pulmonary 19967-9 Fractional oxyhemoglobin (pulse oximetry --pre physiotherapy) · Pulmonary 19968-7 Fractional oxyhemoglobin --pre physiotherapy (Arterial Blood) · Pulmonary 19969-5 Fractional oxyhemoglobin (pulse oximetry --pre treatment) · Pulmonary 19970-3 Fractional oxyhemoglobin --pre treatment (Arterial Blood) · Pulmonary 19971-1 Humidifier types · Pulmonary 19972-9 Inspiration setting Ventilator · Pulmonary 19973-7 Inspiration/Expiration setting Ventilator · Pulmonary 19974-5 Maximum Respiratory system airway opening (airway pressure monitor --at inspiration on ventilator) · Pulmonary 19975-2 Maximum Respiratory system airway opening --during inspiration on ventilator · Pulmonary 19976-0 Maximum Trachea airway (airway pressure monitor --at inspiration on ventilator) · Pulmonary 19977-8 Maximum Trachea airway --during inspiration on ventilator · Pulmonary 19978-6 Nasal cannula type · Pulmonary 19979-4 Oxygen (8 hour maximum) Transcutaneous O2 monitor (Capillary Blood) · Pulmonary 19980-2 Oxygen (8 hour maximum) (Capillary Blood) · Pulmonary 19981-0 Oxygen (8 hour minimum) Transcutaneous O2 monitor (Capillary Blood) · Pulmonary 19982-8 Oxygen (8 hour minimum) (Capillary Blood) · Pulmonary 19983-6 Oxygen Respiratory system alveolus Calculated · Pulmonary 19984-4 Oxygen Preductal (Blood, transcutaneous o2 monitor) · Pulmonary 19985-1 Oxygen Preductal (Blood) · Pulmonary 19986-9 Oxygen Postductal (Blood, transcutaneous o2 monitor) · Pulmonary 19987-7 Oxygen Postductal (Blood) · Pulmonary 19988-5 Maximum oxygen setting Ventilator alarm · Pulmonary 19989-3 Minimum oxygen setting Ventilator alarm · Pulmonary 19990-1 Alveolar-arterial oxygen Partial pressure difference · Pulmonary 19991-9 Oxygen/Gas total Inhaled gas (helium single breath) · Pulmonary 19992-7 Oxygen/Gas total Inhaled gas (gas dilution.rebreath) · Pulmonary 19993-5 Oxygen/Total gas setting Ventilator · Pulmonary 19994-3 Oxygen/Inspired gas Respiratory system (o2 analyzer --on ventilator) · Pulmonary 19995-0 Oxygen/Inspired gas Respiratory system --on ventilator · Pulmonary 19996-8 Oxygen (Capillary Blood, transcutaneous o2 monitor --during bronchodilation) · Pulmonary 19997-6 Oxygen --during bronchodilation (Capillary Blood) · Pulmonary 19998-4 Oxygen (Capillary Blood, transcutaneous o2 monitor --during chest physiotherapy) · Pulmonary 19999-2 Oxygen --during chest physiotherapy (Capillary Blood) · Pulmonary 20000-6 Oxygen (Capillary Blood, transcutaneous o2 monitor --during treatment) · Pulmonary 20001-4 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on high flow oxygen and asleep · Pulmonary 20002-2 Oxygen (Minimum value during study) Capillary blood Transcutaneous O2 monitor --on high flow oxygen and asleep · Pulmonary 20003-0 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on high flow oxygen and awake · Pulmonary 20004-8 Oxygen (Minimum value during study) Capillary blood Transcutaneous O2 monitor --on high flow oxygen and awake · Pulmonary 20005-5 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on high flow oxygen and eating · Pulmonary 20006-3 Oxygen (Minimum value during study) Capillary blood Transcutaneous O2 monitor --on high flow oxygen and eating · Pulmonary 20007-1 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on low flow oxygen and asleep · Pulmonary 20008-9 Oxygen (Minimum value during study) Capillary blood Transcutaneous O2 monitor --on low flow oxygen and asleep · Pulmonary 20009-7 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on low flow oxygen and awake · Pulmonary 20010-5 Oxygen (Minimum value during study) Capillary blood Transcutaneous O2 monitor --on low flow oxygen and awake · Pulmonary 20011-3 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on low flow oxygen and eating · Pulmonary 20012-1 Oxygen (Minimum value during study) Capillary blood Transcutaneous O2 monitor --on low flow oxygen and eating · Pulmonary 20013-9 Oxygen (Maximum value during study) Capillary blood Transcutaneous O2 monitor --on room air and asleep · Pulmonary 20014-7