ICD-9-CM diagnosis code (retired)
973.9 — Poisoning by unspecified agent primarily affecting the gastrointestinal system
About ICD-9-CM 973.9
973.9 is an ICD-9-CM diagnosis code for poisoning by unspecified agent primarily affecting the gastrointestinal system. 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 T47.91XA (Poisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional), initial encounter), T47.92XA (Poisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harm, initial encounter) and T47.93XA (Poisoning by unspecified agents primarily affecting the gastrointestinal system, assault, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- T47.91XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional), initial encounterapproximate
- T47.92XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harm, initial encounterapproximate
- T47.93XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, assault, initial encounterapproximate
- T47.94XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, undetermined, initial encounterapproximate
Common questions about 973.9
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.