Basic (03-86)
   
   
   
   DI 21501.001 through DI 21501.270 contain the material that defines disability and blindness under the approved State
      welfare plans as in effect for October 1972. Where, in adjudicating disability and
      blindness in title XVI conversion cases, a determination must be made as to whether
      disability or blindness under a State plan continues to exist, it is the definition
      in the State plan that must be applied.
   
   
   The material in DI 21501.001 through DI 21501.270 provides the definition of permanent and total disability and blindness extracted
      verbatim from the State plans. Also provided are the State manual section numbers
      and titles and any pertinent cross-references. The documentation requirements under
      title XVI govern in making determinations under both the Federal and State plan definitions
      of disability and blindness.