ICD-9-CM diagnosis code (retired)
963.1 — Poisoning by antineoplastic and immunosuppressive drugs
About ICD-9-CM 963.1
963.1 is an ICD-9-CM diagnosis code for poisoning by antineoplastic and immunosuppressive drugs. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 4 ICD-10-CM codes, such as T45.1X1A (Poisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), initial encounter), T45.1X2A (Poisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, initial encounter) and T45.1X3A (Poisoning by antineoplastic and immunosuppressive drugs, assault, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- T45.1X1APoisoning by antineoplastic and immunosuppressive drugs, accidental (unintentional), initial encounterapproximate
- T45.1X2APoisoning by antineoplastic and immunosuppressive drugs, intentional self-harm, initial encounterapproximate
- T45.1X3APoisoning by antineoplastic and immunosuppressive drugs, assault, initial encounterapproximate
- T45.1X4APoisoning by antineoplastic and immunosuppressive drugs, undetermined, initial encounterapproximate
Common questions about 963.1
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.