ICD-9-CM diagnosis code (retired)
971.0 — Poisoning by parasympathomimetics (cholinergics)
About ICD-9-CM 971.0
971.0 is an ICD-9-CM diagnosis code for poisoning by parasympathomimetics (cholinergics). 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 8 ICD-10-CM codes, such as T44.0X1A (Poisoning by anticholinesterase agents, accidental (unintentional), initial encounter), T44.0X2A (Poisoning by anticholinesterase agents, intentional self-harm, initial encounter) and T44.0X3A (Poisoning by anticholinesterase agents, assault, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- T44.0X1APoisoning by anticholinesterase agents, accidental (unintentional), initial encounterapproximate
- T44.0X2APoisoning by anticholinesterase agents, intentional self-harm, initial encounterapproximate
- T44.0X3APoisoning by anticholinesterase agents, assault, initial encounterapproximate
- T44.0X4APoisoning by anticholinesterase agents, undetermined, initial encounterapproximate
- T44.1X1APoisoning by other parasympathomimetics [cholinergics], accidental (unintentional), initial encounterapproximate
- T44.1X2APoisoning by other parasympathomimetics [cholinergics], intentional self-harm, initial encounterapproximate
- T44.1X3APoisoning by other parasympathomimetics [cholinergics], assault, initial encounterapproximate
- T44.1X4APoisoning by other parasympathomimetics [cholinergics], undetermined, initial encounterapproximate
Common questions about 971.0
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.