Further to policy 4.3.2, the expense authority may receive assistance from staff to fulfill his/her responsibilities. However, the expense authority is accountable for expenditure approval, and approval of payment requisitions for direct invoices (i.e., vendor invoices or items not matched to a purchase order or contract using iProcurement).
Comorbidity: Addiction and Other Mental Illnesses. When two disorders or illnesses occur in the same person, simultaneously or sequentially, they are described as comorbid. Comorbidity also implies interactions between the illnesses that affect the course and prognosis of both.
Complications and Comorbidities For the purposes of coding diagnoses on claims, a complication is a condition that arises during the hospital stay that prolongs the length of stay. A comorbidity is a pre-existing condition that affects the treatment received and/or prolongs the length of stay.