1

Welcome

BGO

• New members David Sperzel and Jean-Marie Rodrigues

2

Causality - Due to/co-occurrent with/caused by

BGO

• Clarify editorial guidelines as to best approach to satisfy user requests for uncertain, unknown or unstated causality

  • Expanded definition of "pattern 2 ("due to")

  • Expanded definition of pattern 1 ("simple" co-occurrence)

  • X disorder after exposure to Y material agent event

• Test chosen approach with sample concepts to insure reproducibility

3

"Covert co-occurrences"

ECH

• From Ed:

"In a polyhierarchical graph there are theoretically millions of co-occurrences, so I’ve had to prune things down. The approach I’ve taken is to use the members ‘reason for encounter’ and ‘health issue’ parts of the GP/FP RefSet (as candidate plausible ‘life phase descriptions’) and see where they co-occur elsewhere in the data (testing for subtypes which have two or more distinct GP/FP RefSet members as ancestors), on the assumption that these are also ‘plausible life phase descriptions’ that happen to be co-occurrences (whether they say so or not in their FSN).

By example, this approach tells me that because the data contains classes for ‘uveitits’ ,’eye infection’ and ‘infective uveitis’ (the latter not in the GP/FP set), we can theoretically reframe ‘infective uveitis’ in the language of the ECE guidance as ‘uveitis co-occurrent with eye infection’, or arguably ‘uveitis co-occurrent and due to eye infection’. I’m not saying that classes like this should be renamed/remodelled, just that they could.

I’ve then merged this with a comparable treatment of the association relationships (even with this sampling approach the co-occurrences significantly outnumber the associations), and am at a stage where it would be useful to present my findings to the group. I’m not honestly sure whether the results so far help or cloud the issues, but I do think it provides a new perspective".

Ed to post files

4

Drug overdoses

YGA

Should drug overdoses be disorders or events?

5

Addition of new temporal relationships

BGO

• Addition of during, during AND/OR after, ?before

• Extending range of occurrence (or add new attribute) to cover additional temporal periods including 307157008 |Temporal periods relating to activities (qualifier value)|, 307158003 |Temporal periods relating to physiological functions (qualifier value)| and 307152002 |Temporal periods relating to procedure (qualifier value)|

6

New business

BGO

• Meeting frequency: Do we need to move from monthly to biweekly meetings?

• Meeting time: Change in time of meeting with DST?

• Any other topics