; and (ii) the Secretary has determined have the capability to assess whether suppliers of CRT items meet the quality standards established under paragraph (3) . (5) Coding system for complex rehabilitation technologies (A) In general The Secretary shall, in consultation with suppliers and manufacturers of CRT items, establish a formal process to allow submission of CRT code set modification requests by stakeholder groups for comprehensive coding changes related to entire policy groups. This process shall include a specific application, public meeting participation and an appeals process. The Secretary shall then, in consultation with suppliers and manufacturers of CRT items, establish a HCPCS coding subset that shall utilize and include HCPCS codes described in section 1861(jjj)(2) for CRT items for which payment may be made under this subsection. (B) Treatment of existing products (i) In general With respect to CRT items for which payment was available under this title before the effective date of the amendments made by Ensuring Access to Quality Complex Rehabilitation Technology Act of 2017 , the Secretary shall assign such items to a code in the coding subset established under subparagraph (A) . (ii) Updates After the initial assignment under clause (i) , the Secretary may decide to reassign additional product categories, or items within those categories, that exist before the date of the enactment of this subsection to the CRT coding subset. (iii) Consultation Before making reassignments of CRT items under clause (ii) , the Secretary shall consult with suppliers and manufacturers of such items. The Secretary shall not require manufacturers of CRT items for which payment was available under this title before the effective date of the amendments made by the Ensuring Access to Quality Complex Rehabilitation Technology Act of 2017 to submit requests for reassignment of the code for such product to the coding subset under subparagraph (A) as long as— (I) no changes have been made to the code definitions, required