42 CFR § 431.17 - Maintenance of records.
(a) Basis and purpose. This section, based on section 1902(a)(4) of the Act, prescribes the kinds of records a Medicaid agency must maintain, the retention period, and the conditions under which microfilm copies may be substituted for original records.
(b) Content of records. A State plan must provide that the Medicaid agency will maintain or supervise the maintenance of the records necessary for the proper and efficient operation of the plan. The records must include -
(1) Individual records on each applicant and beneficiary that contain information on -
(i) Date of application;
(ii) Date of and basis for disposition;
(iii) Facts essential to determination of initial and continuing eligibility;
(iv) Provision of medical assistance;
(v) Basis for discontinuing assistance;
(2) Statistical, fiscal, and other records necessary for reporting and accountability as required by the Secretary.
(d) Conditions for optional use of microfilm copies. The agency may substitute certified microfilm copies for the originals of substantiating documents required for Federal audit and review, if the conditions in paragraphs (d)(1) through (4) of this section are met.
(1) The agency must make a study of its record storage and must show that the use of microfilm is efficient and economical.
(2) The microfilm system must not hinder the agency's supervision and control of the Medicaid program.
(3) The microfilm system must -
(i) Enable the State to audit the propriety of expenditures for which FFP is claimed; and
(i) The system meets the conditions of paragraphs (d)(2) and (3) of this section; and
(ii) The microfilming procedures are reliable and are supported by an adequate retrieval system.