ICD-9-CM diagnosis code (retired)
963.9 — Poisoning by unspecified systemic agent
About ICD-9-CM 963.9
963.9 is an ICD-9-CM diagnosis code for poisoning by unspecified systemic agent. 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 T45.91XA (Poisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), initial encounter), T45.92XA (Poisoning by unspecified primarily systemic and hematological agent, intentional self-harm, initial encounter) and T45.93XA (Poisoning by unspecified primarily systemic and hematological agent, assault, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- T45.91XAPoisoning by unspecified primarily systemic and hematological agent, accidental (unintentional), initial encounterapproximate
- T45.92XAPoisoning by unspecified primarily systemic and hematological agent, intentional self-harm, initial encounterapproximate
- T45.93XAPoisoning by unspecified primarily systemic and hematological agent, assault, initial encounterapproximate
- T45.94XAPoisoning by unspecified primarily systemic and hematological agent, undetermined, initial encounterapproximate
Common questions about 963.9
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.