SNOMED CT（Systematized Nomenclature of Medicine -- Clinical Terms，医学系统命名法－临床术语，医学术语系统命名法－临床术语），是一部经过系统组织编排的，便于计算机处理的医学术语集，涵盖大多数方面的临床信息，如疾病、所见、操作、微生物、药物等。采用该术语集，可以协调一致地在不同的学科、专业和照护地点之间实现对于临床数据的标引、存储、检索和聚合。同时，它还有助于组织病历内容，减少临床照护和科学研究工作中数据采集、编码及使用方式的变异。

SNOMED CT or SNOMED Clinical Terms is a systematically organized computer processable collection of medical terms providing codes, terms, synonyms and definitions used in clinical documentation and reporting. SNOMED CT is considered to be the most comprehensive, multilingual clinical healthcare terminology in the world. The primary purpose of SNOMED CT is to encode the meanings that are used in health information and to support the effective clinical recording of data with the aim of improving patient care. SNOMED CT provides the core general terminology for electronic health records. SNOMED CT comprehensive coverage includes: clinical findings, symptoms, diagnoses, procedures, body structures, organisms and other etiologies, substances, pharmaceuticals, devices and specimens.