What accreditation really means

Accreditation is a peer review process of assessment of degree-granting programs and institutions for academic quality in higher education.This allows that institution to provide:

• Eligibility for Federal Financial Aid.
• Ability to Transfer Credits: Accreditation provides a basis for transfer of college credits within the U.S.
• Ability to enroll in Graduate education: If your undergraduate degree was earned at an unaccredited institution you run the risk that the graduate school in which you would like to enroll will not accept your degree.

http://www.hicareers.com/Toolbox/recognition.aspx (ahima/ Health information careers)

So if you are looking for a Certificate program, accreditation is irrelevant.