Specify current severity: 
Severity can be rated by the frequency with which the nightmares occur:
Mild:  Less than one episode per week on average.
Moderate: One or more episodes per week but less than nightly.
Severe:  Episodes nightly.
Diagnostic Features
Nightmares  are typically lengthy, elaborate, st orylike sequences of dream imagery that
seem real and that incite anxiety, fear, or  other dysphoric emotio ns. Nightmare content
typically focuses on attempts to avoid or cope with immi nent danger but may involve
themes that evoke other negative emotions. Nightmares occurring after traumatic experi-
ences may replicate the threatening situation (“replicative nightmares”), but most do not.
On awakening, nightmares are well remembered and can be described in detail. They arise