First, every psychologist and a psychotherapist is supposed to be the best measurement instrument him/herself. That is: the most objective, sensitive, valid, and reliable is a well trained, ethical, and dedicated psychologist or psychotherapist him/herself. Beside, there is DSM IV, where you can find something like windigo sickness- this most probably isn't included into this electronic assessment system. Why I find this important? Because of immigration which is bringing voodoo and other occult practices domestic and familiar from where they come, also because of the article found in The Atlantic Monthly which speaks of the witchcraft children in Africa (a horrible narrative of children whose parents or family members went sick and were abused to be possessed by witchcraft) - I can't find it now, but this one should suffice: https://www.nytimes.com/2014/07/05/opinion/the-persecution-of-witches-21st-century-style.html
When people move in such masses then they bring with them what they believe in and also their spiritual guardians if they have them.
Also because a therapist from USA has proposed to include sensitivity and affectedness by frequencies modifiers to be included into DSM IV.