"When Your Child, Teenager, or Adult Son or Daughter has a Mental Illness or Substance Use Disorder, Including Opioid Addiction: What Parents Need to Know about HIPAA"
https://www.hhs.gov/sites/default/files/when-your-child.pdf
"When may a mental health professional use professional judgment to decide whether to share a minor patient’s treatment information with a parent?"
https://www.hhs.gov/sites/default/files/minor-professional-judgment-infographic-12122017.pdf