2024 ICD-10-CM Diagnosis Code T46.2X2

Poisoning by other antidysrhythmic drugs, intentional self-harm

ICD-10-CM Code:
T46.2X2
ICD-10 Code for:
Poisoning by oth antidysrhythmic drugs, self-harm
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
      (T36-T50)
      • Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system
        (T46)

T46.2X2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of poisoning by other antidysrhythmic drugs, intentional self-harm. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Poisoning by oth antidysrhythmic drugs, self-harm

Non-specific codes like T46.2X2 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for poisoning by oth antidysrhythmic drugs, self-harm:

  • Use T46.2X2A for initial encounter - BILLABLE CODE

  • Use T46.2X2D for subsequent encounter - BILLABLE CODE

  • Use T46.2X2S for sequela - BILLABLE CODE

Approximate Synonyms

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

  • Amiodarone overdose
  • Amiodarone poisoning
  • Amiodarone poisoning
  • Bretylium overdose
  • Class II antiarrhythmic overdose
  • Class III antiarrhythmic overdose
  • Class III antiarrhythmic overdose
  • Disopyramide overdose
  • Disopyramide poisoning
  • Disopyramide poisoning
  • Intentional amiodarone overdose
  • Intentional amiodarone poisoning
  • Intentional bretylium overdose
  • Intentional disopyramide overdose
  • Intentional disopyramide poisoning
  • Intentional procainamide overdose
  • Intentional procainamide poisoning
  • Intentional quinidine overdose
  • Intentional quinidine poisoning
  • Poisoning by procainamide
  • Poisoning by procainamide
  • Poisoning by quinidine
  • Poisoning by quinidine
  • Procainamide overdose
  • Quinidine overdose

Clinical Information

  • Ajmaline

    an alkaloid found in the root of rauwolfia serpentina, among other plant sources. it is a class 1-a antiarrhythmic agent that apparently acts by changing the shape and threshold of cardiac action potentials.
  • Amiodarone

    an antianginal and class iii antiarrhythmic drug. it increases the duration of ventricular and atrial muscle action by inhibiting potassium channels and voltage-gated sodium channels. there is a resulting decrease in heart rate and in vascular resistance.
  • Aprindine

    a class ib anti-arrhythmia agent used to manage ventricular and supraventricular arrhythmias.
  • Bunaftine

    n-butyl-n-(2-(diethylamino)ethyl)-1-naphthamide. a proposed antiarrhythmic that prolongs myocardial refractory period and stabilizes cell membranes.
  • Disopyramide

    a class i anti-arrhythmic agent (one that interferes directly with the depolarization of the cardiac membrane and thus serves as a membrane-stabilizing agent) with a depressant action on the heart similar to that of guanidine. it also possesses some anticholinergic and local anesthetic properties.
  • Encainide

    one of the anti-arrhythmia agents, it blocks voltage-gated sodium channels and slows conduction within the his-purkinje system and myocardium.
  • Flecainide

    a potent anti-arrhythmia agent, effective in a wide range of ventricular and atrial arrhythmias and tachycardias.
  • Lorajmine

    a monochloroacetyl derivative of ajmaline. it is a class ia antiarrhythmic agent that is rapidly hydrolyzed to ajmaline by plasma and tissue esterases.
  • Mexiletine

    antiarrhythmic agent pharmacologically similar to lidocaine. it may have some anticonvulsant properties.
  • Procainamide

    a class ia antiarrhythmic drug that is structurally-related to procaine.
  • Propafenone

    an antiarrhythmia agent that is particularly effective in ventricular arrhythmias. it also has weak beta-blocking activity.
  • Quinidine

    an optical isomer of quinine, extracted from the bark of the chinchona tree and similar plant species. this alkaloid dampens the excitability of cardiac and skeletal muscles by blocking sodium and potassium currents across cellular membranes. it prolongs cellular action potentials, and decreases automaticity. quinidine also blocks muscarinic and alpha-adrenergic neurotransmission.
  • Tocainide

    an antiarrhythmic agent which exerts a potential- and frequency-dependent block of sodium channels.

Coding Guidelines

When coding a poisoning or reaction to the improper use of a medication (e.g., overdose, wrong substance given or taken in error, wrong route of administration), first assign the appropriate code from categories T36-T50. The poisoning codes have an associated intent as their 5th or 6th character (accidental, intentional self-harm, assault and undetermined. If the intent of the poisoning is unknown or unspecified, code the intent as accidental intent. The undetermined intent is only for use if the documentation in the record specifies that the intent cannot be determined. Use additional code(s) for all manifestations of poisonings.

The appropriate 7th character is to be added to each code from block Poisoning by, adverse effect of and underdosing of agents primarily affecting the cardiovascular system (T46). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Table of Drugs and Chemicals

The code is referenced 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.

According to ICD-10-CM coding guidelines it is advised to do not code directly from the Table of Drugs and Chemicals, instead always refer back to the Tabular List when doing the initial coding. Each substance in the table is assigned a code according to the poisoning classification and external causes of adverse effects. It is important to use as many codes as necessary to specify all reported drugs, medicinal or chemical substances. If the same diagnosis code describes the causative agent for more than one adverse reaction, poisoning, toxic effect or underdosing, utilize the code only once.

Substance Poisoning
Accidental
(unintentional)
Poisoning
Accidental
(self-harm)
Poisoning
Assault
Poisoning
Undetermined
Adverse
effect
Underdosing
Adenosine (phosphate)T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
AjmalineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
AmiodaroneT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Antidysrhythmic NECT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
AprindineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Bretylium tosilateT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
BunaftineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
CardiacT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Cardiac
  »depressants
T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Cardiac
  »rhythm regulator
T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Cardiac
  »rhythm regulator
    »specified NEC
T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Chinidin (e)T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
CibenzolineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
DisopyramideT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
EncainideT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
FlecainideT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
HydroquinidineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
LorajmineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
LorcainideT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
MexiletineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Pilsicainide (hydrochloride)T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Prajmalium bitartrateT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
ProcainamideT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
Pronestyl (hydrochloride)T46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
PropafenoneT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
QuinagluteT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
QuinidineT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6
TocainideT46.2X1T46.2X2T46.2X3T46.2X4T46.2X5T46.2X6

Patient Education


Poisoning

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.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.