ICD-9-CM diagnosis code (retired)
964.3 — Poisoning by vitamin K (phytonadione)
About ICD-9-CM 964.3
964.3 is an ICD-9-CM diagnosis code for poisoning by vitamin K (phytonadione). 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 3 ICD-10-CM codes, such as T45.7X1A (Poisoning by anticoagulant antagonists, vitamin K and other coagulants, accidental (unintentional), initial encounter), T45.7X2A (Poisoning by anticoagulant antagonists, vitamin K and other coagulants, intentional self-harm, initial encounter) and T45.7X3A (Poisoning by anticoagulant antagonists, vitamin K and other coagulants, assault, initial encounter). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
- T45.7X1APoisoning by anticoagulant antagonists, vitamin K and other coagulants, accidental (unintentional), initial encounterapproximate
- T45.7X2APoisoning by anticoagulant antagonists, vitamin K and other coagulants, intentional self-harm, initial encounterapproximate
- T45.7X3APoisoning by anticoagulant antagonists, vitamin K and other coagulants, assault, initial encounterapproximate
Common questions about 964.3
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.