ICD-10 G47.11
Billable / SpecificIdiopathic hypersomnia with long sleep time
About ICD-10-CM G47.11
ICD-10-CM code G47.11 represents Idiopathic hypersomnia with long sleep time. This is a billable/specific code in the Nervous System chapter (block G47). The 2026 edition of ICD-10-CM G47.11 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under G47.11. Per CMS ICD-10-CM Tabular 2026.
- Idiopathic hypersomnia NOS
Medicare LCD Coverage for G47.11
Local Coverage Determinations (LCDs) from CMS MACs that list G47.11 as a covered diagnosis.
Showing top 10 of 137 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing G47.11.
5 Medicare
CPT Codes Commonly Billed with G47.11
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 95805 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95783 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95806 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- G0399 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95801 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95803 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95810 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95800 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- 95811 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
- G0398 CMS LCD: Billing and Coding: Polysomnography and Other Sleep Studies CMS LCD
Convert G47.11 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| G47.11 | 32711 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To G47.11
Other codes in section G40-G47 (Episodic and paroxysmal disorders).
ICD-10 G47.11, Billing FAQ
Is ICD-10 code G47.11 billable? +
Yes, G47.11 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to G47.11? +
ICD-10 G47.11 includes: Idiopathic hypersomnia NOS.
What CPT codes are commonly billed with G47.11? +
Procedures frequently paired with G47.11 include: 95805, 95783, 95806, G0399, 95801.
What ICD-9 codes does G47.11 map to? +
Per CMS GEMs, G47.11 maps to ICD-9 codes: 32711. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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