Regarding Tribunal diagnosis

Hi Everyone,
Im not quite sure about this so please can i have some advise on this, when i completed the pip review form, i noted this the consultants was investigating at the time for 8 months Rosea, i had bloods taken  and biopsys done,  i said that i was tired and kept on falling asleep, and i was in pain at the time of face to face assessment, this was still under investigation i was also attending a pain management, after failed MR couple months later i was diagnosed with Lupus, a refferral was made so that i see a rheumatologist Consultant,after examination looking at test results and bloods taken  ive been diagnosed with  have complex regional pain syndrome and chronic pain syndrome, also mild effusion of left knee i mentioned in review that i had osteoarthritis in both knees as well as my ankle i have appointment to see arthoscopy next month as this was on going at pip review 2 and face to face consultation would the dwp class this as a new diagnosis or on going, no date for a tribunal as yet, bundle i recieved in November last year,i would appreciate any help given Thank you