Can substance abuse treatment facilities release information to authorities?

I have a friend wants to get help with a substance abuse problem that she has. She has 4 kids, 3 of which she has lost custody. She wants to attend meetings to get help. However, she is unsure if she should reveal that she has kids, for fear of someone telling social services and thus taking her other kid away. What kind of privacy act is in place for organizations such as NA and AA?

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