Official Letter No. 1804/BHXH-QLT dated August 4, 2025, issued by Vietnam Social Security, regarding the use of Personal Identification Numbers (PIN) / Citizen Identification Numbers (CID) in replacement of Social Security Numbers (SSN) and unit management codes
Pursuant to current regulations, in order to unify the management of participant data through the use of Personal Identification Numbers (PIN) and Citizen Identification Numbers (CID), ensuring integration and synchronization of databases (DB) among agencies for administrative management purposes, and to facilitate individuals and enterprises in resolving administrative procedures, Vietnam Social Security guides provincial Social Security offices to use PIN/CID in replacement of SSN and unit management codes for participants of social insurance (SI) and health insurance (HI) as follows:
From August 1, 2025, the PIN/CID shall be used to replace the SSN of participants in SI and HI.
The Official Letter also specifies the management code set for units participating in SI, HI, and UI; the code list for HI participant groups; and implementation responsibilities.
Transitional provisions: While waiting for the software systems to be updated to implement the above regulations, the previously issued 10-digit SSNs and management codes shall continue to be used for management, classification, and retrieval of professional and operational information related to participating units and individuals.
