"Bahmni is adding an `Internal Reference` term in the partner fields in Odoo. This field is made mandatory. It is used to hold the Patient Identifier value.
However, it does not really apply when creating partners that are not patients (for instance, the company itself is a partner, patients that are not entered through Clinical,etc)."
The partner field `Internal Reference` exists also in the older OpenERP under `Reference` but is not set as mandatory