That would be a good psychosocial diagnosis. You could also use Hopelessness. Death Anxiety, Impaired Gas Exchange d/t chemotherapy drugs, Nausea, Imbalanced Nutrition: Less than body req., d/t depression and chemo therapy... There's a lot I could write down lol. If you're focusing on a specific area such as the depression, cancer or VRE let me know and I try to write back and be more specific :) Hope this helps!