ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 1 A00-B99 Certain infectious and parasitic diseases /
A80-A89 Viral and prion infections of the central nervous system /
A81 Atypical virus infections of central nervous system
Billable ICD-10-CM Code A81.83
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A81.83
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Fatal familial insomnia
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| FFI |