#!/usr/bin/perl
use warnings; use strict;

my @code_array = qw(7772344 2233421 TMW2222987 
TMA2222333 TMW9999988 AMQ8873332 AMQ1111877);
#prime a lookup from the numeric code back to the full code.
my %code_by_num;
for my $code (@code_array)
{
  (my $num = $code) =~ s/\D//g;
  $code_by_num{ $num } = $code;
}
#...
while (my $pt = $sth->fetchrow_hashref) 
       {
          my $accountnumber = $pt->{'accounts'};
          my $acc_id = $pt->{'id'};
          my $accountcode = $code_by_num{ $accountnumber };
          print "$accountcode $acc_id\n"
        }