You can check if a priority already exists with if (exists $hash{20}){...}

further 

foreach my $priority (sort keys %hash) {
  print "Priority: $priority\n";
  foreach (keys %{$hash{$priority}}) {
     print "\t $_ => $hash{$priority}{$_}\n";
  } 
}

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In reply to Re: a hash with priority by ccn
in thread a hash with priority by meirgold

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