ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status /
Z79 Long term (current) drug therapy
Billable ICD-10-CM Code Z79.634
Z79.634
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Long term (current) use of topoisomerase inhibitor 
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Long term (current) use of etoposide
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Long term (current) use of irinotecan
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Long term (current) use of topotecan
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