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Domain
General
Foundational healthcare data concepts and cross-domain terminology.
34,570 general terms
National Institutes of HealthNIH
NebulizerNebulizer
NeedleNeedle
Neonatal Intensive Care UnitNICU
NephrologyNEPH
NeurologyNEURO
Next-Generation SequencingNGS
NitroglycerineNTG
No RefillNR
Non-ConformanceNC
Non-Sterile CompoundingNSC
Normal SalineNS
North American Pharmacist Licensure ExaminationNAPLEX
Nothing By MouthNPO
Notified BodyNB
Nurse PractitionerNP
NutraceuticalNutraceutical
Object IdentifiersOIDS
Observation LOINC Codeobs_loinc_cd
The universal identifier for laboratory tests and clinical observations.
Observation Unitobs_unit_meas
The unit of measure for the clinical value (e.g., mg/dL, mmol/L).