Are you using Talend data management platform V 6.2.1? We think that you are referring to Talend Data Mapper, which can deal with X12 structures, specifically HIPAA transactions.
Talend data mapper can be available in Talend Real-time Big Data Platform product.
Could you please refer to :TalendHelpCenter:Talend Data Mapper User Guide?
Feel free to post your issue here.