CS-Modifier – 2011 new modifier

Modifier CS: Gulf Oil 2010 Spill Related

Long description: “Item or service related, in whole or in part, to an illness, injury, or condition that was caused by or exacerbated by the effects, direct or indirect, of the 2010 oil spill in the Gulf of Mexico, including but not limited to subsequent clean-up activities.”

CMS is requiring that every Medicare Fee-For-Service claim be specifically identified if it is for an item or service furnished to a Medicare beneficiary, where the provision of such item or service is related, in whole or in part, to an illness, injury, or condition that was caused by or exacerbated by the effects, direct or indirect, of the 2010 oil spill in the Gulf of Mexico and/or circumstances related to such oil spill, including but not limited to subsequent clean-up activities.

Claims from physicians, other practitioners, and suppliers must be annotated with the modifier “CS” for each line item where the item or service is so related. Similarly, claims from institutional billers must be annotated with a condition code of “BP” when the entire claim is so related or with the “CS” modifier for each relevant line item when only certain line items are so related. The modifier and condition code are to be used for claims with dates of service on or after April 20, 2010.

The title of the BP condition code is “Gulf oil spill related” and its definition is as follows: “This code identifies claims where the provision of all services on the claim are related, in whole or in part, to an illness, injury, or condition that was caused by or exacerbated by the effects, direct or indirect, of the 2010 oil spill in the Gulf of Mexico and/or circumstances related to such spill, including but not limited to subsequent clean-up activities.”