We modified the Hfs92 code of GRASP package in order to describe magnetic octupole hyperfine interaction. To illustrate utility code, we carried out state-of-the-art calculations electronic factors interaction constants for levels ground configuration Bi atom. The nuclear moment 209Bi isotope was extracted by combining old measurements structures 6p34S3/2o [Hull, R.; Brink, G. Phys. Rev. A 1970...
