WASHINGTON  The Obama administration, reversing course, will revise a Medicare regulation to delete references to end-of-life planning as part of the annual physical examinations covered under the new health care law, administration officials said Tuesday.

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.

Although the health care bill signed into law in March did not mention end-of-life planning, the topic was included in a huge Medicare regulation setting payment rates for thousands of physician services. The final regulation was published in the Federal Register in late November. The proposed rule, published for public comment in July, did not include advance care planning.