GR — General Rule (AHCIP GR)
A general rule published in the AHCIP Schedule of Medical Benefits. GRs govern eligibility, documentation requirements, modifier use, and modifier-25 application. Zorva's 18 AHCIP rules cite GR 1.4 (modifier-25), GR 3.3 (CMGP), GR 4.4 (dx-linkage), GR 6.2 (referral documentation), and others.