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The HSN is a multipurpose international product terminology acknowledged by the World Customs Organization. The purpose of using the HSN codes is to ensure that GST billing practices are in accord with international standards of product nomenclature.
The social security number (SSN) is the nine-digit code assigned to the wage earner under whose benefits the eligible person is receiving Medicare. For example, a non-working wife will be assigned an HIC number that contains her wage earning husbandâs SSN.