Understanding Society User Support

Hello,

I am working on my masters thesis on depression and planned to use the BHPS data set (w6-w18). There are questions to self-assess whether someone is struggling with depression.
Is there any question which covers whether someone has been clinically DIAGNOSED with depression (like the variable "hcond17" in the Understanding Society data set)?

Or asked differently: Does the variable "hlprbi" in the bhps data set mean, that someone is diagnosed, or does it mean that the individual self-asses oneself as being depressed?

If there is no such variable, is it possible to use the variable "hcond17" and hcond17a" from the Understanding society dataset, link it via the idp to the BHPS data set and create a new variable in the bhps dataset which determines whether and when an individual from the bhps got diagnosed?

Thank you very much in advance! I hope I was able to state my concern in an understandable way.

Best regards,

Michael