Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_73367 ( "Former country name" text, "Former codes" text, "Period of validity" text, "ISO 3166-3 code" text, "New country names and codes" text )

### Question ###
Name the former codes for merged into panama ( pa , pan , 591 )

### Accurate SQL ###

SELECT "Former codes" FROM table_73367 WHERE "New country names and codes" = 'Merged into Panama ( PA , PAN , 591 )'