The Centers for Medicare & Medicaid Services (CMS) requests that Medicare Administrative Contractors (MACs) reject the following CWF Provider Queries: ELGA, ELGH, HIQA, HIQH, and HUQA, containing HICNs starting with '9' with CWF error code A002 - INVALID HIC/SSN.
Subject: Common Working File (CWF) to reject CWF Provider Queries containing Health Insurance Claim Numbers (HICNs) starting with '9'
Release Date: May 12, 2017
Effective Date: October 1, 2017
Implementation Date: October 2, 2017
Special Notes: N/A