ICD-10-CM Code T65.0X1

Toxic effect of cyanides, accidental (unintentional)

Version 2020 Non-Billable Code Poisoning Accidental

Not Valid for Submission

T65.0X1 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of toxic effect of cyanides, accidental (unintentional). The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code T65.0X1 might also be used to specify conditions or terms like accidental poisoning by cyanide, accidental poisoning by hydrocyanic acid gas, chemical-induced asthma, isocyanate causing toxic effect, isocyanate induced asthma, parkinsonism caused by cyanide, etc

Short Description:Toxic effect of cyanides, accidental (unintentional)
Long Description:Toxic effect of cyanides, accidental (unintentional)

Consider the following ICD-10 codes with a higher level of specificity:

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code T65.0X1:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Toxic effect of cyanides NOS


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Accidental poisoning by cyanide
  • Accidental poisoning by hydrocyanic acid gas
  • Chemical-induced asthma
  • Isocyanate causing toxic effect
  • Isocyanate induced asthma
  • Parkinsonism caused by cyanide
  • Toxic effect of cyanide
  • Toxic effect of hydrocyanic acid gas
  • Toxic effect of potassium cyanide
  • Toxic effect of sodium cyanide

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Toxic effects of substances chiefly nonmedicinal as to source (T51-T65)
      • Toxic effect of other and unspecified substances (T65)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Table of Drugs and Chemicals

The code T65.0X1 is included in the Table of Drugs and Chemicals, this table contains a classification of drugs, industrial solvents, corrosive gases, noxious plants, pesticides, and other toxic agents. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. Use as many codes as necessary to describe all reported drugs, medicinal or chemical substances.

Substance Poisoning
2,4-toluene diisocyanateT65.0X1T65.0X2T65.0X3T65.0X4
Aliphatic thiocyanatesT65.0X1T65.0X2T65.0X3T65.0X4
Cyanide (s) (compounds) (potassium) (sodium) NECT65.0X1T65.0X2T65.0X3T65.0X4
Cyanide (s) (compounds) (potassium) (sodium) NEC
  »dust or gas (inhalation) NEC
Cyanide (s) (compounds) (potassium) (sodium) NEC
Cyanide (s) (compounds) (potassium) (sodium) NEC
Cyanide (s) (compounds) (potassium) (sodium) NEC
Cyanide (s) (compounds) (potassium) (sodium) NEC
  »pesticide (dust) (fumes)
Dicyanogen (gas)T65.0X1T65.0X2T65.0X3T65.0X4
Prussic acidT65.0X1T65.0X2T65.0X3T65.0X4
Prussic acid
TDI (vapor)T65.0X1T65.0X2T65.0X3T65.0X4

Information for Patients


A poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include

  • Prescription or over-the-counter medicines taken in doses that are too high
  • Overdoses of illegal drugs
  • Carbon monoxide from gas appliances
  • Household products, such as laundry powder or furniture polish
  • Pesticides
  • Indoor or outdoor plants
  • Metals such as lead and mercury

The effects of poisoning range from short-term illness to brain damage, coma, and death. To prevent poisoning it is important to use and store products exactly as their labels say. Keep dangerous products where children can't get to them. Treatment for poisoning depends on the type of poison. If you suspect someone has been poisoned, call your local poison control center at 1-800-222-1222 right away.

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