G47.37 ICD-10-CM Code: Central sleep apnea in conditions classified elsewhere
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FY 2026 Apr update / Diseases of the nervous system (G00-G99) / Episodic and paroxysmal disorders (G40-G47)
G47.37
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceCentral sleep apnea in conditions classified elsewhere
This code describes sleep apnea caused by a central nervous system problem that occurs as a result of another medical condition the patient has. During sleep, the brain temporarily fails to signal the muscles to breathe, causing breathing to stop and start repeatedly.
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
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for G47.37 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for G47.37 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for G47.37 in this effective period.
Excludes 1
Official- apnea NOS (R06.81)
- Cheyne-Stokes breathing (R06.3)
- pickwickian syndrome (E66.2)
- sleep apnea of newborn (P28.3-)
Code First
Official- underlying condition
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for G47.37 in this effective period.
Code Also
Official- any associated underlying condition
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 G47.37 an HCC code?
No. G47.37 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
G47.37 is the ICD-10-CM diagnosis code for central sleep apnea in conditions classified elsewhere. This code describes sleep apnea caused by a central nervous system problem that occurs as a result of another medical condition the patient has. During sleep, the brain temporarily fails to signal the muscles to breathe, causing breathing to stop and start repeatedly. G47.37 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).
G47.37 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.
This is a secondary diagnosis code that requires documentation of the underlying condition causing the central sleep apnea (such as heart failure, stroke, or neurological disease) - code that condition first.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for G47.37 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This is a secondary diagnosis code that requires documentation of the underlying condition causing the central sleep apnea (such as heart failure, stroke, or neurological disease) - code that condition first
- •Do not use this code for obstructive sleep apnea or primary central sleep apnea; verify the apnea type is documented as central and is directly related to another classified condition
Code First
- underlying condition