ICD-10-CM > Z00-Z99 > Z77-Z99 > Z79 > Z79.6 > Z79.63 > Z79.630 Z79.630 Long term (current) use of alkylating agent Billable/Specific Copy Code Copy Description Applicable To Long term (current) use of chlorambucilLong term (current) use of cisplatinLong term (current) use of cyclophosphamide