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HCN

HCN

Poisoning, accidental (unintentional)T57.3X1
Poisoning, intentional self-harmT57.3X2
Poisoning, assaultT57.3X3
Poisoning, undeterminedT57.3X4

Source: official CMS/NCHS ICD-10-CM Table of Drugs and Chemicals. Informational only.

Data current as of FY2026 CMS/NCHS release. Not affiliated with or endorsed by CMS, HHS, or NCHS.

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