If you have all diagnoses in arrays you could do the following: 

use strict;
use warnings;

my %diags = ( "Meningitis" => \@array,
          "Encephalitis" => \@Encephalitis_77,
          # more of them here
        );

my $Search = qw( 6280 );

my $found_one = 0;
for my $diag ( keys %diags ) {
  if( my @found = grep { $_ eq $Search } @{$diags{$diag}} ) {
    my $found = join ",", @found;
    print "Primary diagnosis: $diag, $found\n";
    $found_one = 1;
  }
}
print "Sorry, \"$Search\" not found in diagnosis list\n" unless $found
+_one;

[download]

Disclaimer: have not run this due to lack of sample data, so there might be errors in there. But the concept should be clear.

Update: changed @$diag to @{$diags{$diag}}.

In reply to Re: Search multiple variables by hdb
in thread Search multiple variables by Raya4505

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