Back to search

loinc code

loinc_cd
clinical·Updated May 27, 2026

Definition

ISO-11179 Definition

The standardized numeric identifier assigned by the Regenstrief Institute to uniquely identify a clinical observation, laboratory test, or measurement. Used across EHR, lab, and claims systems to enable interoperable exchange of diagnostic results and support consistent reporting of clinical data.

Standard Abbreviation

loinc_cd

Category

clinical

Why This Term Matters

Clinical terms are the building blocks of risk adjustment, quality measurement, and value-based care analytics. A data engineer who understands this terminology can design schemas that correctly capture patient conditions, procedures, and encounters — enabling accurate HCC scoring, HEDIS measure attribution, and CMS reporting. Misclassifying clinical fields in a data warehouse cascades into incorrect RAF scores and failed regulatory submissions.

Looking for more healthcare terms?

Browse our complete library of 100,000+ standardized healthcare data terms

Browse All Terms