Add ‘insurance ref’ and ‘custom field’ to invoice

Hi,

I decided to use ‘Insurance ref’ for the insurance number of the patient.
Next to that I added a (text) field in the patient editor for his or her social security number. This custom field I have created is labeled patient_bsn.

I am still in the position to change these items, if necessary.

The insurance company’s in my country would like to see those numbers on the bill to the patient. So I would like to add these numbers to the invoice template.

How do I make this happen? 🙄