Admitting Diagnosis Code. This list contains principal diagnosis codes for psychiatric services Category of Service 21. If a. code from this list is used as the principal diagnosis code, general care hospitals that are not. enrolled for COS 21 may only bill for a maximum of three days of emergency psychiatric care. using COS 20.
Palpitation can be precipitated by vomiting or diarrhea that leads to electrolyte disorders and hypovolemia. Hyperventilation, hand tingling, and nervousness are common when anxiety or panic disorder is the cause of the palpitations. Causes. Palpitation can be attributed to one of four main causes: Extra-cardiac stimulation of the sympathetic nervous system (inappropriate stimulation of the sympathetic nervous system, particularly the vagus nerve (which innervates the heart), can be caused by anxiety and stress due to acute or chronic elevations in glucocorticoids and catecholamines.
Overview. 1  People experience heart palpitations when their hearts start beating rapidly or begin fluttering or pounding. 2  Most often, heart palpitations are induced because of environmental factors such as a strong emotional reaction to a situation or person.