Table 1.3.1: A Comparison of Insomnia Classification Schemes
ICSD
Name Code
ICD-9
Name Code
ICD-10
Name Code
DSM-IV
Name Code

1a Adjustment sleep disorder

307.41-0

Transient disorder of initiating & maintaining sleep

Nonorganic insomnia

F51.0

1b Psychophysiologic insomnia

307.42-0

Persistent disorder of initiating & maintaining sleep

Nonorganic insomnia

F51.

Primary insomnia

307.442

Other insomnia

780.52

Disorder of initiating & maintaining sleep

G47.0

5b Central sleep apnea syndrome

780.51-0

5c Central alveolar hypoventilation syndrome

780.51-1

Insomnia with sleep apnea

Sleep apnea

G47.3

Breathing-related sleep disorder

780.59

7a Short Sleeper

8e Fatal familial insomnia

337.9

Fatal familial insomnia

337.9

Other degenerative diseases

Insomnia due to…

780.xx

Idiopathic

780.52-7

Other insomnia

780.52

Disorder of initiating & maintaining sleep

G47.0

Primary insomnia

307.42

Source: Kryger et al., 1999