Variances to be harmonized: value set bindings, cardinality, etc.

For example:
* Coverage.type is 0..1 and binds to valueset-coverage-type (e.g. HMO, PPO, dental, LTC, vision)
* InsurancePlan.type (product type) is 0..* and binds to valueset-insuranceplan-type (e.g. medical, dental)
* InsurancePlan.coverage.type (one type per coverage) and has no binding, but definition implies medical, dental, LTC. Why is this different than InsurancePlan.type?

Recommentation is to:

• Change Coverage.type to 0..* (FM)
  * Change InsurancePlan.type and/or InsurancePlan.coverage.type to bind to the same value set (valueset-coverage-type) as well as differentiate between why both of these types are needed? (logged to PA as https://gforge.hl7.org/gf/project/fhir/tracker/?action=TrackerItemEdit&tracker_item_id=24915)