other specified sexual dysfunction or  unspecified sexual dysfunction. 
Comorbidity 
There is some evidence to sugge st that delayed ejaculation may be more common in severe
forms of major de pressive disorder. 
Erectile Disorder
Diagnostic Criteria 302.72 (F52.21)
A. At least one of the three following symptoms must be experienced on almost all or all
(approximately 75%–100%) occasions of sexual activity (in identified situational con-
texts or, if generalized, in all contexts):
1. Marked difficulty in obtaining an erection during sexual activity.
2. Marked difficulty in maintaining an erection until the completion of sexual activity.
3. Marked decrease in erectile rigidity.
B. The symptoms in Criterion A have persist ed for a minimum duration of approximately
6 months.
C. The symptoms in Criterion A cause clinically significant distress in the individual.
D. The sexual dysfunction is not better explained by a nonsexual mental disorder or as a
consequence of severe relationship distress or other significant stressors and is not at-
tributable to the effects of a substance/medication or another medical condition.
Specify whether:
Lifelong:  The disturbance has been present since the individual became sexually ac-
tive.
Acquired:  The disturbance began after a period of relatively normal sexual function.
Specify whether:
Generalized:  Not limited to certain types of stimulation, situations, or partners.
Situational: Only occurs with certain types of stimulation, situations, or partners.