Hello tct
I don't know what make of pacemaker or ICD you have , but here is a link to Medtronic 's website where they offer guidance about the safe use of things like appliances, tools, etc. Most of the manufacturers have similiar information available online.
In my experience, if one manufacturer states an item is safe to use, the others do , too.
https://www.medtronic.com/en-us/l/patients/electromagnetic-guide/household-hobby.html
Hope this helps.
All the best