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LOINC (Logical Observation Identifiers Names and Codes) - JSON

LOINC (Logical Observation Identifiers Names and Codes) is an international standard code system for identifying clinical laboratory tests and healthcare observations. Developed by the Regenstrief Institute in the United States in 1994, it is now used in over 172 countries and adopted as a national standard in more than 15 countries. LOINC consists of two major divisions: Laboratory LOINC (specimen-based tests) and Clinical LOINC (clinical observations). By structuring test items using six axes - Component, Property, Time, System, Scale, and Method - LOINC enables accurate data exchange between healthcare institutions worldwide.

LOINC clinical laboratory healthcare standards HL7 FHIR test codes health data exchange Regenstrief Institute

[
  {
    "code": "CHEM",
    "slug": "chemistry",
    "name": "Chemistry",
    "description": "Clinical chemistry tests including electrolytes, enzymes, hormones, metabolites, proteins, lipids, and therapeutic drug monitoring.",
    "category": "Laboratory"
  },
  {
    "code": "HEM/BC",
    "slug": "hematology-blood-counts",
    "name": "Hematology/Blood Counts",
    "description": "Hematology tests including blood cell counts, coagulation studies, blood cell morphology, hemoglobin, hematocrit, and platelet counts.",
    "category": "Laboratory"
  },
  {
    "code": "MICRO",
    "slug": "microbiology",
    "name": "Microbiology",
    "description": "Microbiology tests including bacterial cultures, viral studies, fungal cultures, parasitology, organism identification, and susceptibility testing.",
    "category": "Laboratory"
  },
  {
    "code": "SERO",
    "slug": "serology",
    "name": "Serology",
    "description": "Serological tests including antibody detection assays, immunological tests, and viral serology (HIV, Hepatitis, etc.).",
    "category": "Laboratory"
  },
  {
    "code": "UA",
    "slug": "urinalysis",
    "name": "Urinalysis",
    "description": "Urinalysis tests including urine chemistry, urine microscopy, and urine culture.",
    "category": "Laboratory"
  },
  {
    "code": "DRUG/TOX",
    "slug": "drug-toxicology",
    "name": "Drug/Toxicology",
    "description": "Drug and toxicology tests including drug screening, toxicology panels, and substance abuse testing.",
    "category": "Laboratory"
  },
  {
    "code": "ABXBACT",
    "slug": "antibiotic-susceptibility",
    "name": "Antibiotic Susceptibility",
    "description": "Antimicrobial susceptibility testing for bacteria.",
    "category": "Laboratory"
  },
  {
    "code": "CELLMARKER",
    "slug": "cell-markers",
    "name": "Cell Markers",
    "description": "Cell surface markers, flow cytometry, and immunophenotyping tests.",
    "category": "Laboratory"
  },
  {
    "code": "MOLPATH",
    "slug": "molecular-pathology",
    "name": "Molecular Pathology",
    "description": "Molecular genetic tests including gene mutations, gene amplifications, and chromosomal translocations.",
    "category": "Laboratory"
  },
  {
    "code": "VITALS",
    "slug": "vital-signs",
    "name": "Vital Signs",
    "description": "Vital signs including body temperature, blood pressure, pulse rate, and respiratory rate.",
    "category": "Clinical"
  },
  {
    "code": "EKG",
    "slug": "electrocardiogram",
    "name": "Electrocardiogram",
    "description": "Recording of the heart's electrical activity through electrocardiogram testing.",
    "category": "Clinical"
  },
  {
    "code": "IMAGING",
    "slug": "imaging-studies",
    "name": "Imaging Studies",
    "description": "Diagnostic imaging tests including X-ray, CT, MRI, and ultrasound.",
    "category": "Clinical"
  },
  {
    "code": "SURVEY",
    "slug": "survey-instruments",
    "name": "Survey Instruments",
    "description": "Standardized assessment scales such as Glasgow Coma Scale, PHQ-9, and functional status assessments.",
    "category": "Clinical"
  },
  {
    "code": "DOC",
    "slug": "clinical-documents",
    "name": "Clinical Documents",
    "description": "Healthcare documents including discharge summaries, clinical notes, and pathology reports.",
    "category": "Clinical"
  }
]