Hi Bonnie Team,

I have an edge case at 12/31/2009 11:59pm for a Measurement Period of 2012.

define "Cervical Cytology Within 3 Years":
... Global."Latest" ( CervicalCytology.effective ) 3 years or less on or before
end of "Measurement Period" ...

It looks like Bonnie QDM accepts this edge case for the logic whereas Bonnie FHIR does not.

1. Bonnie QDM 12/31/2009 11:59pm
2. Bonnie FHIR 12/31/2009 11:59pm
3. Bonnie FHIR 1/1/2010 12:00am

https://cql.hl7.org/09-b-cqlreference.html#on-or-before-1

Thank you,

Dorothy