Posts tagged: Electronic Health Records

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How to Create a Codelist

A practical guide to creating codelists from scratch for health data research.

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What is a Codelist?

What are codelists and why do they matter? An accessible introduction to coding systems, clinical nuance, and research reproducibility.

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Clinic to Code to Care

This blog came out of a talk Steph Jones and I gave at Women in Data and AI in October 2025. It explores the journey of information from a patient in clinic to how that information is coded for research and ultimately ends up informing statistical and machine learning models that can help improve patient care.

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SNOMED and friends

This blog provides an introduction to SNOMED codes and how they are used in routine care in the UK. It also covers some of the quirks of SNOMED and the challenges of using it in research.

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An Introduction to Electronic Health Records

A quick primer on what is an electronic health record and how it is used in clinical practice and research. This post is UK focussed but the principles are the same in many other countries.

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