PIP Assessments - Mental State Examination

I have noticed that reference is made - in a PIP Consultation Report Form - PA4 which refers to applicants with mental health conditions - to the assessor conducting a 'Mental State Examination', abbreviated to 'MSE'.

This is clearly some recognised medical assessment process but I cannot find it described in HMGs Personal Independence Payment (PIP) assessment guide for assessment providers
www.gov.uk/government/publications/perso...assessment-providers

Do you know anything about this MSE and by whom it was designed/approved? Is it a nationally recognised 'tool' authorised by NICE or NHS etc? Is a copy of the MSE available to the public?

I have had a good look online and found some older sources of information on the process as a diagnostic tool but can't find anything requiring/justifying its use in the PIP assessment context.

Having looked at the sources betow I now have a better understanding of the underlying factors which an HP will be lookung at during a consultaion/assessment. The links may be of use to others who are attending with mental health as an aspect of their condition(s).

www.testandcalc.com/richard/resources/Te...atus_Examination.pdf

www.askdoctorclarke.com/content/c261.pdf

www.ole.bris.ac.uk/bbcswebdav/institutio...istory_mse_print.pdf

www.wales.nhs.uk/sitesplus/documents/104...te%20Examination.ppt

www.nevdgp.org.au/files/programsupport/m...0Exam%20-%20form.pdf

www.psychpage.com/learning/library/advpr...ecording%20Sheet.pdf

www.ucl.ac.uk/clinical-psychology/compet...nation%2015th%20Sept.

I can't find reference to the MSE in the guidance produced by Benefits and Work advice and it came as a bit of a surprise that such a model is used with applicants with mental health aspects.

Can I siuggest that reference to it be updated?