LOINC Code Directory
Browse the Logical Observation Identifiers Names and Codes (LOINC) directory. Over 97,000 codes for laboratory tests, clinical observations, surveys, and claims attachments.
Popular Lab Tests
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LCCS
Laboratory
Laboratory test observations including chemistry, hematology, microbiology, and more.
Clinical
Clinical observations from physical exams, radiology, cardiology, and other specialties.
Claims
Claims attachment codes for insurance and billing documentation.
Surveys
Survey instruments and questionnaires for patient-reported outcomes.