Table 1 An example of the 5-byte Read code that shows how the specificity of a term increases as a function of depth
From: The languages of health in general practice electronic patient records: a Zipf’s law analysis
Depth | Read code | Term |
|---|---|---|
1 | G | Circulatory system diseases |
2 | G3 | Ischaemic heart disease |
3 | G30 | Acute myocardial infarction |
4 | G301 | Other specified anterior myocardial infarction |
5 | G3011 | Acute anteroseptal infarction |