Additional Health Insurance Portability and Accountability Act (HIPAA) 837 5010 Transitional Changes and Further Modifications to the Coordination of Benefits Agreement (COBA) National Crossover Process
Through this instruction, the Centers for Medicare and Medicaid Services (CMS) 1) defines the new "222" error codes that the Coordination of Benefits Contractor (COBC) will return to Medicare contractors once crossover payers have transitioned to HIPAA 5010 production; and 2) activates a new "222" error code for situations when a COBA trading partner is bought out by another entity,
thereby requiring that it obtain a new COBA identifier. In addition, CMS is directing all shared systems to
always include "MA18" or "N89," if applicable, in association with loop 2320 Medicare Inpatient
Adjudication Information and Medicare Outpatient Adjudication Information for all claims (versions 4010-
A1 and 5010) that the Common Working File has identified for crossover to the COBC.
Issued by: Centers for Medicare & Medicaid Services (CMS)
Issue Date: November 06, 2009
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