Web scraping with Perl

Since I need to get all ICD9 codes for my work, I decided to implement a lightweight web crawler in Perl, with the aims of parsing all codes found at It seems that the WWW-Mechanize module provides all that is needed. In fact, I also realized that this technique may be extended to catch up anything on a website, which is called web scraping. Web scraping is the process of automatically collecting Web information.