Specify ICD-O code in a medication order along a chemotherapy

[ian.mcnicoll]

Long thread here on term_mappings

Storing codes of two external terminologies

Here comes my bull in a china shop moment : Using the mappings of DV_TEXT, one can indeed store N mappings with references to various terminologies as @siljelb says. However, I cannot see a way to constraint what those terminologies are allowed to be. I.e. you can record mappings to terminologies, but you cannot force validation to reject data if it contains a mapping to a code from SuperDuperAstrologyChartBasedCodingSystem© You can record the fact that a value must be from a particu…

Though I think I prefer @siljelb suggestion.

Even if you like our idea of maintaining the master list of diagnosis codes separately, there is a case for entering it again in the Order as an Indication, as it labels the indication specifically at the point the order was made, without having to maintain potentially complex links as the diagnosis morphs over time