Erectile Malfunction

The erectile dysfunction is not better accounted for by another mental disorder (other than a sexual dysfunction) and is not due exclusively to the direct physiological effects of a substance (e.g., a drug of abuse, a medication) or a general medical condition.

Persistent or recurrent inability to attain, or to maintain until completion of the sexual activity, an adequate erection.The disturbance causes marked distress or interpersonal difficulty.