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Systematized Nomenclature of Medicine, Clinical Terms (SNOMED CT). Maintained by SNOMED International. The most comprehensive multilingual clinical terminology, covering diagnoses, procedures, findings, and clinical concepts. Used in over 40 countries for electronic health records and clinical documentation. Symphony for SNOMED CT currently outputs three types of SNOMED concept: findings, disorders, and procedures. On the SNOMED CT Entity Linking Challenge it achieves a micro F1 score of 54.8%.

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Upcoming improvements

This is a Beta release, so there are several things we plan to improve:
  1. The model does not currently support negations or temporality. If the clinical note says “no fever”, the model will predict “386661006 Fever”. We will add support for negation and temporality soon.
  2. The model currently uses many tokens. This means we cannot support many parallel calls, and each call is expensive. We are working on solutions to reduce token usage.
We have only evaluated this implementation on data from a limited set of specialties. This may not generalize to all hospitals. Contact us to share feedback or report issues.