You may find the following links helpful for your Integrated Medicare Easyclaim development.
Medicare Easyclaim for Health Professionals http://www.medicareaustralia.gov.au/provider/medicare/claiming/easyclaim/index.jsp
Medicare Easyclaim Reference Guide http://www.medicareaustralia.gov.au/provider/medicare/claiming/easyclaim/reference-guide.jsp
Processing & Payment reports http://www.medicareaustralia.gov.au/provider/medicare/claiming/easyclaim/provider-directory-system.jsp
Medicare Easyclaim List Of Return Codes http://www.medicareaustralia.gov.au/provider/medicare/claiming/easyclaim/files/medicare-easyclaim-return-code-list.pdf
HPOS User Guide http://www.medicareaustralia.gov.au/hpos/user-guides.jsp
HPOS FAQ’s http://www.medicareaustralia.gov.au/hpos/faqs.jsp
HPOS Login http://www.medicareaustralia.gov.au/hpos/index.jsp