The model policy form template for Plans C and D are designated as Form GHBAS-1, and the schedule of benefits for Plans C and D is designated as Form GHBAS-S. You must carefully complete the necessary sections on this form.Insured's ID Number. (Patient's Medicare Health Insurance Claim Number - HICN). The DD Form 1172-2 shall be used to apply for issuance of a DD Form 2 (Reserve, Retired, and. Certain forms must be given to all applicants. Other forms are required based on the program(s) being applied for.