Z79.634

✓ Billable

Long term (current) use of topoisomerase inhibitor

Factors influencing health status and contact with health services (Z00-Z99)

Also Known As

Long term (current) use of etoposideLong term (current) use of irinotecanLong term (current) use of topotecan

✅ No additional coding notes for Z79.634

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Code Information

CodeZ79.634

BillableYes

CategoryFactors influencing health status and contact with health services (Z00-Z99)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)