(1) A member has a severe and disabling mental illness if the member:

(a) has been involuntarily committed to the Montana State Hospital or the Montana Mental Health Nursing Care Center for at least 30 consecutive days in the previous 12 months; or

(b) is 18 years of age or older and:

(i) has a minimum of two areas of high-level impairment as measured by a score of three or higher on the Severe and Disabling Mental Illness, Home and Community Based Waiver, Evaluation and Level of Impairment form; and

(ii) is diagnosed with one of the following diagnoses, excluding mild or not otherwise specified:

(A) Schizophrenia, paranoid type;

(B) Schizophrenia, disorganized type;

(C) Schizophrenia, catatonic type;

(D) Schizophrenia, undifferentiated type;

(E) Schizophrenia, residual type;

(F) Delusional disorder;

(G) Schizoaffective disorder;

(H) Schizoaffective disorder, depressive type;

(I) Bipolar I disorder, manic, moderate;

(J) Bipolar I disorder, manic, severe without psychotic features;

(K) Bipolar I disorder, manic, severe with psychotic features;

(L) Bipolar I disorder, depressed, moderate;

(M) Bipolar I disorder, depressed, severe without psychotic features;

(N) Bipolar I disorder, depressed, severe with psychotic features;

(O) Bipolar I disorder, mixed, moderate;

(P) Bipolar I disorder, mixed, severe without psychotic features;

(Q) Bipolar I disorder, severe with psychotic features;

(R) Major depressive disorder, single, moderate;

(S) Major depressive disorder, single, severe without psychotic features;

(T) Major depressive disorder, single, severe with psychotic features;

(U) Major depressive disorder, recurrent, moderate;

(V) Major depressive disorder, recurrent, severe without psychotic features;

(W) Major depressive disorder, recurrent, severe with psychotic features;

(X) Post traumatic stress disorder, acute;

(Y) Post traumatic stress disorder, chronic;

(Z) Panic disorder with agoraphobia;

(AA) Panic disorder without agoraphobia;

(AB) Borderline personality disorder;

(AC) Dissociative amnesia disorder;

(AD) Dissociative fugue disorder;

(AE) Dissociative stupor disorder; and

(AF) Dissociative identity disorder.