G47.9 ICD-10-CM Code: Sleep disorder, unspecified
HCC Buddy Code Card
Digital ICD-10 code-book layout with official code detail, always-visible risk models, Code Trumping, and Buddy coding guidance.
FY 2026 Apr update / Diseases of the nervous system (G00-G99) / Episodic and paroxysmal disorders (G40-G47)
G47.9
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceSleep disorder, unspecified
A sleep disorder that has been diagnosed but the specific type or cause has not been clearly identified or documented. This is used when a patient has sleep problems but the medical record doesn't specify whether it's insomnia, sleep apnea, narcolepsy, or another specific sleep condition.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
Code Trumping
Basket needed
Code Book Path
Inclusion Terms
Official- Sleep disorder NOS
- Unspecified sleep-wake disorder
Excludes 2
Official- nightmares (F51.5)
- nonorganic sleep disorders (F51.-)
- sleep terrors (F51.4)
- sleepwalking (F51.3)
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for G47.9 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for G47.9 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for G47.9 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for G47.9 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for G47.9 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is G47.9 an HCC code?
No. G47.9 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
Get the V28 RAF + MEAT cheat sheet
One printable page: confirm a code's V28 HCC status, its RAF weight, and the MEAT your note needs to make it stick. Free, no card.
Free PDF. No card. Unsubscribe anytime.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
G47.9 is the ICD-10-CM diagnosis code for sleep disorder, unspecified. A sleep disorder that has been diagnosed but the specific type or cause has not been clearly identified or documented. This is used when a patient has sleep problems but the medical record doesn't specify whether it's insomnia, sleep apnea, narcolepsy, or another specific sleep condition. G47.9 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering episodic and paroxysmal disorders (g40-g47).
G47.9 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Use this code only when the specific type of sleep disorder cannot be determined from the medical record; always attempt to obtain more specific documentation from the provider before defaulting to this unspecified code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for G47.9 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code only when the specific type of sleep disorder cannot be determined from the medical record; always attempt to obtain more specific documentation from the provider before defaulting to this unspecified code
- •Review the patient's symptoms and history carefully—documentation of sleep disturbances, daytime sleepiness, or nighttime breathing issues may help identify a more specific sleep disorder code that would be more clinically useful