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Pre-Coordination | Post-Coordination |
|---|---|
Severe Complicated Measles | Severe + Complicated + Measles |
Left Upper Lobe Scarring | Left + Upper + Lobe of Lung + Scarring |
Recurrent intravascular papillary endothelial hyperplasia of the right middle finger | intravascular papillary endothelial hyperplasia + middle finger structure + right |
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The goal of Value Groups is to answer a single question with multiple answers (post-coordination). See more information on Value Groups at this wiki page.
Best Practices Employed by
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AMPATH
Ampath AMPATH realizes that there's no "right" or "wrong" way to deciding when to lump concepts together (pre-coordinate) vs. slit them apart (post-coordinate). Our implementation has found that the best decider is pragmatism. In other words, how the concepts are going to be used both clinically and for reporting. For example, the number of times that a group will need to study all gram stains independent of specimen type (post-coordination) is small compared to the benefits of reliably identifying a urine gram stain as something clinically distinct from an effusion gram stain (pre-coordination). As a general rule, make concepts no more granular than needed.
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