F51.1 - Hypersomnia not due to a substance or known physiological condition
- Applicable to Hypersomnia not due to a substance or known physiological condition
- The 2025 edition of ICD10-CM F51.1 became effective on October 1, 2024.
- This is the American ICD10-CM version of F51.1 - other international versions of ICD10 F51.1 may differ.
- F51.1 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- F51.1 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.
- F51.1 - Hypersomnia not due to a substance or known physiological condition
- F51.1 - Hypersomnia not due to a substance or known physiological condition
- F51.11 - Primary hypersomnia
- F51.12 - Insufficient sleep syndrome
- F51.13 - Hypersomnia due to other mental disorder
- F51.19 - Other hypersomnia not due to a substance or known physiological condition
Type 2 Excludes
- alcohol related hypersomnia (F10.182, F10.282, F10.982)
- drug-related hypersomnia (F11.182, F11.282, F11.982, F13.182, F13.282, F13.982, F14.182, F14.282, F14.982, F15.182, F15.282, F15.982, F19.182, F19.282, F19.982)
- hypersomnia NOS (G47.10)
- hypersomnia due to known physiological condition (G47.10)
- idiopathic hypersomnia (G47.11, G47.12)
- narcolepsy (G47.4-)
The following codes above F51.1 contain annotation back-references that may be applicable to F51.1:
Chapter: F01-F99 Mental, Behavioral and Neurodevelopmental disorders
Section: F50-F59 Behavioral syndromes associated with physiological disturbances and physical factors
Category: F51 Sleep disorders not due to a substance or known physiological condition
Non-Billable/Non-Specific Code
Browse other similar CM codes
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
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