309.1
ICD-9-CMThis code describes a depressive reaction that is unusually prolonged, typically lasting longer than six months following a psychosocial stressor. It signifies a more persistent and severe emotional disturbance than an acute stress reaction, but generally less severe than a major depressive disorder. The reaction is directly attributable to an identifiable stressor, such as bereavement or significant life changes.
Use this code when documentation indicates a depressive response to a psychosocial stressor that has persisted for an extended period, generally exceeding six months, and significantly impairs functioning. This diagnosis is appropriate when the symptoms do not meet the full criteria for a major depressive episode or other specified mood disorders. Supporting documentation should clearly link the depressive symptoms to a specific stressor and note the prolonged duration.
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