There is nothing in ยง 16-16-16 that states that PTSD is the only psychological disability that qualifies for an accidental disability retirement. See Wydra v. City of Rochester, 87 A.D.3d 1379, 1380-81 (N.Y.App.Div. 2011) (expert testimony that applicant suffered from depression and anxiety, but not from PTSD, was not substantial evidence in support of denial of accidental disability benefits where statute did not distinguish between categories of mental illness). Indeed, in many cases, it may be nearly impossible to draw a bright line distinction between the symptoms of PTSD and depression and anxiety.