ICD-9-CM

327.0 Organic disorders of initiating and maintaining sleep [Organic insomnia] Excludes: insomnia NOS (780.52) insomnia not due to a substance or known physiological condition (307.41-307.42) insomnia with sleep apnea NOS (780.51)
327.00: Organic insomnia, unspecified
327.01: Insomnia due to medical condition classified elsewhere Code first underlying condition Excludes: insomnia due to mental disorder (327.02)
327.02: Insomnia due to mental disorder Code first mental disorder Excludes: alcohol induced insomnia (291.82) drug induced insomnia (292.85)
327.09: Other organic insomnia

327.0 Organic disorders of initiating and maintaining sleep [Organic insomnia]

Excludes:

insomnia NOS (780.52)

insomnia not due to a substance or known physiological condition (307.41-307.42)

insomnia with sleep apnea NOS (780.51)

Code first underlying condition

Excludes:

insomnia due to mental disorder (327.02)

Code first mental disorder

Excludes:

alcohol induced insomnia (291.82)

drug induced insomnia (292.85)

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