Upon a determination by the Secretary concerned that a member of the armed forces not covered by section
1201,
1202, or
1203 of this title would be qualified for retirement under section
1204 of this title but for the fact that his disability is not determined to be of a permanent nature and stable, the Secretary shall, if he also determines that accepted medical principles indicate that the disability may be of a permanent nature, place the member’s name on the temporary disability retired list, with retired pay computed under section
1401 of this title.