| Full description | Other insomnia not due to a substance or known physiological condition |
| Billable | Yes |
| Chapter | Chapter 5: Mental, Behavioral and Neurodevelopmental disorders (F01-F99) |
| Section | Behavioral syndromes associated with physiological disturbances and physical factors (F50-F59) |
| Parent code | F51.0 — Insomnia not due to a substance or known physiol condition |