As a health plan we currently only conduct coordination of benefits (COB) with Medicare. Does the transaction and code set regulation require health plans to conduct COB with all health plans and health care providers even though they may not currently conduct COB with those entities?

11/2/2001:

No. It is the health plan's decision as to whether they coordinate benefits electronically with another health plan or a health care provider. If a health plan decides to coordinate benefits electronically with another health plan or a health care provider, they must use the standard transaction for COB.