The move is an abrupt shift, coming just days after the new policy took effect on Jan. 1.

Many doctors and providers of hospice care had praised the regulation, which listed “advance care planning” as one of the services that could be offered in the “annual wellness visit” for Medicare beneficiaries.

While administration officials cited procedural reasons for changing the rule, it was clear that political concerns were also a factor. The renewed debate over advance care planning threatened to become a distraction to administration officials who were gearing up to defend the health law against attack by the new Republican majority in the House.