G47.12
Billable codeIdiopathic hypersomnia without long sleep time
The ICD-10 code for idiopathic hypersomnia without long sleep time is G47.12.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- G47.10Hypersomnia, unspecified
- G47.11Idiopathic hypersomnia with long sleep time
- G47.13Recurrent hypersomnia
- G47.14Hypersomnia due to medical condition
- G47.19Other hypersomnia
- G47.12Idiopathic hypersomnia without long sleep time
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 32712
Associated MS-DRGs
G47.12 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.