G93.32 ICD-10-CM Code: Myalgic encephalomyelitis/chronic fatigue syndrome
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) / Other disorders of the nervous system (G89-G99)
G93.32
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceMyalgic encephalomyelitis/chronic fatigue syndrome
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a long-term condition characterized by extreme tiredness that doesn't improve with rest, along with muscle pain and cognitive difficulties. Symptoms worsen with physical or mental exertion and can significantly impact daily functioning.
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
Official- Chronic fatigue syndrome
- ME/CFS
- Myalgic encephalomyelitis
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for G93.32 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for G93.32 in this effective period.
Excludes 1
Official- chronic fatigue NOS (R53.82)
- neurasthenia (F48.8)
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for G93.32 in this effective period.
Use Additional
Official- code, if applicable, for post COVID-19 condition, unspecified (U09.9)
Code Also
OfficialICD-10-CM does not list Code Also instructions for G93.32 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 G93.32 an HCC code?
No. G93.32 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
G93.32 is the ICD-10-CM diagnosis code for myalgic encephalomyelitis/chronic fatigue syndrome. Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a long-term condition characterized by extreme tiredness that doesn't improve with rest, along with muscle pain and cognitive difficulties. Symptoms worsen with physical or mental exertion and can significantly impact daily functioning. G93.32 sits in the ICD-10-CM chapter for diseases of the nervous system (g00-g99), within the section covering other disorders of the nervous system (g89-g99).
G93.32 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 code should only be used when ME/CFS is formally diagnosed; fatigue alone without confirmed ME/CFS diagnosis should be coded differently (such as R53.82 for chronic fatigue).
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for G93.32 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code should only be used when ME/CFS is formally diagnosed; fatigue alone without confirmed ME/CFS diagnosis should be coded differently (such as R53.82 for chronic fatigue)
- •Document the specific symptoms present (post-exertional malaise, cognitive impairment, sleep disturbance) in the medical record to support the diagnosis and justify medical necessity for treatment