ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 20 V00-Y99 External causes of morbidity /
Y90-Y99 Supplementary factors related to causes of morbidity classified elsewhere /
Y99 External cause status
Billable ICD-10-CM Code Y99.9
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Y99.9
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Unspecified external cause status
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