2024 ICD-10-CM Diagnosis Code T46.2X1A
Poisoning by other antidysrhythmic drugs, accidental (unintentional), initial encounter
- ICD-10-CM Code:
- T46.2X1A
- ICD-10 Code for:
- Poisoning by oth antidysrhythmic drugs, accidental, init
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Not chronic
- Code Navigator:
T46.2X1A is a billable diagnosis code used to specify a medical diagnosis of poisoning by other antidysrhythmic drugs, accidental (unintentional), initial encounter. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
T46.2X1A is an initial encounter code, includes a 7th character and should be used while the patient is receiving active treatment for a condition like poisoning by other antidysrhythmic drugs accidental (unintentional). According to ICD-10-CM Guidelines an "initial encounter" doesn't necessarily means "initial visit". The 7th character should be used when the patient is undergoing active treatment regardless if new or different providers saw the patient over the course of a treatment. The appropriate 7th character codes should also be used even if the patient delayed seeking treatment for a condition.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Accidental amiodarone overdose
- Accidental amiodarone poisoning
- Accidental bretylium overdose
- Accidental disopyramide overdose
- Accidental disopyramide poisoning
- Accidental procainamide overdose
- Accidental procainamide poisoning
- Accidental quinidine overdose
- Accidental quinidine poisoning
- Amiodarone overdose
- Amiodarone poisoning
- Bretylium overdose
- Class II antiarrhythmic overdose
- Class II antiarrhythmic overdose
- Class III antiarrhythmic overdose
- Class III antiarrhythmic overdose
- Class III antiarrhythmic overdose
- Class III antiarrhythmic overdose
- Disopyramide overdose
- Disopyramide poisoning
- Overdose of cardiac antiarrhythmic agent
- Poisoning by procainamide
- Poisoning by quinidine
- Procainamide overdose
- Quinidine overdose
Clinical Classification
Clinical Category | CCSR Category Code | Inpatient Default CCSR | Outpatient Default CCSR |
---|---|---|---|
External cause codes: intent of injury, accidental/unintentional | EXT020 | N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis. | N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis. |
External cause codes: poisoning by drug | EXT014 | N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis. | N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis. |
Poisoning by drugs, initial encounter | INJ022 | Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis. | Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis. |
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
Convert T46.2X1A to ICD-9-CM
- ICD-9-CM Code: 972.0 - Pois-card rhythm regulat
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment. - ICD-9-CM Code: E858.3 - Acc poisn-cardiovasc agt
Combination Flag - Multiple codes are needed to describe the source diagnosis code. Correct coding should be done based on contextual judgment.
Table of Drugs and Chemicals
The parent code T46.2X1 of the current diagnosis 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.
Patient Education
Medication Errors
Medicines treat infectious diseases, prevent problems from chronic diseases, and ease pain. But medicines can also cause harmful reactions if not used correctly. Errors can happen in the hospital, at the health care provider's office, at the pharmacy, or at home. You can help prevent errors by:
- Knowing your medicines. When you get a prescription, ask the name of the medicine and check to make sure that the pharmacy gave you the right medicine. Make sure that you understand how often you should take the medicine and how long you should take it.
- Keeping a list of medicines.
- Write down all of the medicines that you are taking, including the names of your medicines, how much you take, and when you take them. Make sure to include any over-the-counter medicines, vitamins, supplements, and herbs that you take.
- List the medicines that you are allergic to or that have caused you problems in the past.
- Take this list with you every time you see a health care provider.
- Reading medicine labels and following the directions. Don't just rely on your memory - read the medication label every time. Be especially careful when giving medicines to children.
- Asking questions. If you don't know the answers to these questions, ask your health care provider or pharmacist:
- Why am I taking this medicine?
- What are the common side effects?
- What should I do if I have side effects?
- When should I stop this medicine?
- Can I take this medicine with the other medicines and supplements on my list?
- Do I need to avoid certain foods or alcohol while taking this medicine?
Food and Drug Administration
[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.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.