28 Tex. Admin. Code § 21.2806
An HMO or preferred provider carrier may revise its requirements for data elements, attachments or additional clean claim elements that have previously been properly included as elements of a clean claim pursuant to §§21.2803(b), (c), (d), and (e), 21.2804, and 21.2805 of this title (relating to Elements of a Clean Claim, Disclosure of Necessary Attachments, and Disclosure of Additional Clean Claim Elements). To revise the requirements for data elements, attachments, or additional clean claim elements, the HMO or preferred provider carrier shall provide advance written notice to all affected physicians or providers of such revisions in accordance with §21.2818 of this title (relating to Disclosure Formats). The notice shall identify with specificity the revisions to data elements, attachments, or additional clean claim elements, and must be received by the physician or provider at least 60 calendar days before the HMO or preferred provider enforces such revisions to the requirements of a clean claim. If the contract between the HMO or preferred provider carrier and the physician or provider provides for mutual agreement of the parties as the sole mechanism for requiring revised data elements, attachments or additional clean claim elements that have previously been properly included as elements of a clean claim pursuant to §§21.2803(b), (c), (d), and (e), 21.2804, and 21.2805 of this title, then the written notice specified in this section does not supersede the requirement for mutual agreement.
Source Note:The provisions of this §21.2806 adopted to be effective May 23, 2000, 25 TexReg 4543; amended to be effective October 2, 2001, 26 TexReg 7542.