G93.32 Myalgic encephalomyelitis/chronic fatigue syndrome

Billable ICD-10-CM code, FY2026.

Applicable to

• Chronic fatigue syndrome
• ME/CFS
• Myalgic encephalomyelitis

Applies from G93.3 Postviral and related fatigue syndromes

Excludes1 (never code together)

• chronic fatigue NOS (R53.82)
• neurasthenia (F48.8)

Use additional code

• code, if applicable, for post COVID-19 condition, unspecified (U09.9)

MS-DRG index

Defines the logic of DRG(s) 947-948 in MDC 23.

Code annotations containing back-references to G93.32

Back-references to G93.32

• Type 1 Excludes: A85 Other viral encephalitis, not elsewhere classified ("myalgic encephalomyelitis (G93.32)")
• Type 2 Excludes: G04 Encephalitis, myelitis and encephalomyelitis ("myalgic encephalomyelitis (G93.32)")
• Type 1 Excludes: R53.82 Chronic fatigue, unspecified ("chronic fatigue syndrome (G93.32)")
• Type 1 Excludes: R53.82 Chronic fatigue, unspecified ("myalgic encephalomyelitis (G93.32)")

Diagnosis Index entries for G93.32

• Encephalomyelitis › myalgic
• Encephalomyelitis › myalgic › chronic fatigue syndrome [ME/CFS]
• ME/CFS (myalgic encephalomyelitis/chronic fatigue syndrome)
• SEID (systemic exertion intolerance disease)
• Syndrome › fatigue › chronic
• Systemic exertion intolerance disease [SEID]

Nearby codes

• G93.0 Cerebral cysts
• G93.1 Anoxic brain damage, not elsewhere classified
• G93.2 Benign intracranial hypertension
• G93.3 Postviral and related fatigue syndromes
• G93.31 Postviral fatigue syndrome
• G93.32 Myalgic encephalomyelitis/chronic fatigue syndrome (this code)
• G93.39 Other post infection and related fatigue syndromes
• G93.4 Other and unspecified encephalopathy
• G93.40 Encephalopathy, unspecified
• G93.41 Metabolic encephalopathy
• G93.42 Megalencephalic leukoencephalopathy with subcortical cysts