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Case Lab · Type E · Boundary

F52

One difficult night, during a hard week

A 29-year-old mentions that he had difficulty with sexual arousal on one occasion last month, during a week when he was working very long hours, sleeping poorly, and under significant deadline pressure. This has not recurred before or since, he reports no ongoing distress about it, and describes his usual sexual functioning as entirely unaffected outside that one occasion.

What is the best-supported classification?