do i have a good casw for a hippa law violation?

My daughter was born the 28th of August, the nurse had our doctor wrong and argued with me about it to find out i was right. After she had a false positive in her system so division of social services come to talk to us at the hospital, but they disclosed information to my fiancee's daughters grandmother without saying a word to us, eeven though we went and took another drug test for d.f.s and my childs mother passed the test.