F51.1
Non-billableHypersomnia not due to a substance or known physiol cond
Hypersomnia not due to a substance or known physiological condition
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- disorders of psychological development
Excludes 2
Conditions not included here, but the patient may have both
- symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
- organic sleep disorders (G47.-)
- 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-)
Child Codes (4)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code F51.1?
ICD-10-CM code F51.1 represents "Hypersomnia not due to a substance or known physiological condition". It is a non-billable header code — use a more specific child code for billing purposes.
Is F51.1 a billable code?
No, F51.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under F51.1.
What chapter is F51.1 in?
F51.1 is in Chapter 5: Mental, Behavioral and Neurodevelopmental Disorders (codes F01-F99).
What are the subcategories under F51.1?
F51.1 has 4 child codes, including: F51.11 (Primary hypersomnia), F51.12 (Insufficient sleep syndrome), F51.13 (Hypersomnia due to other mental disorder), F51.19 (Oth hypersomnia not due to a substance or known physiol cond).
What are the UMLS CUIs for F51.1?
F51.1 is linked to 1 UMLS Concept Unique Identifier: C2874964. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.