The Institute of Fundraising is reviewing all 29 of its codes of fundraising practice.
Each code provides a guide to the law and best practice for different fundraising techniques.
Louise Richards, the institute’s director of policy and campaigns, said she hoped the review would lead to the codes being more widely used and regarded as "a bible for every fundraiser".
She said the decision was taken internally rather than in response to any complaints.
Richards said the review was already under way and that the institute would consult with all of its committees and relevant external stakeholders, such as the Fundraising Standards Board.
It is expected to last until the end of the year.
Richards said any small changes, such as updates to the law, would be made during the process of the review.
But she added that if a code required major changes then it would go through the institute’s usual revision process, which includes a public consultation.