ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 6 G00-G99 Diseases of the nervous system /
G30-G32 Other degenerative diseases of the nervous system /
G31 Other degenerative diseases of nervous system, not elsewhere classified
Billable ICD-10-CM Code G31.9
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G31.9
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Degenerative disease of nervous system, unspecified
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