2025 ICD-10-CM code T46.2X5A

Adverse effect of other antidysrhythmic drugs, initial encounter.

Always adhere to the official ICD-10-CM coding guidelines.Ensure that the most specific code available is used for the nature of the adverse reaction and the causative drug.Additional codes may be needed to fully reflect the patient's condition.

Modifiers may be applicable depending on the circumstances of the service provided.Consult the official coding guidelines for specific modifier use.

The medical necessity for coding T46.2X5A is established by the presence of a clinically significant adverse reaction directly attributable to the use of an antidysrhythmic drug.Appropriate documentation supporting the causal relationship is crucial for reimbursement.

The clinical responsibility lies with the physician or healthcare professional managing the patient's condition, including diagnosing the adverse drug reaction, providing appropriate treatment, and monitoring the patient's response. Documentation should include details of the medication, the adverse reaction, and treatment provided.

IMPORTANT Consider using additional codes from T36-T50 (with 5th/6th character as '5') to specify the drug causing the adverse effect.Codes from other chapters might be necessary to describe the nature of the adverse effect (e.g., for blood disorders, dermatitis, etc.).Use Z18.- to code for any retained foreign body.

In simple words: This code is used when someone has a bad reaction to a type of heart rhythm medication (not including specific ones like digoxin or calcium channel blockers) for the first time.The doctor will need to record exactly which medication caused the problem.

This code classifies the initial encounter for an adverse effect resulting from the use of other antidysrhythmic drugs.It is crucial to specify the drug involved using supplementary codes from categories T36-T50 with the fifth or sixth character as '5'.Additional codes may be necessary to identify any accompanying manifestations of the poisoning or any retained foreign body (Z18.-).

Example 1: A 65-year-old male patient on amiodarone experiences shortness of breath and swelling in his legs.T46.2X5A is used to code the adverse reaction, and additional codes specify amiodarone as the causative agent and the specific symptoms (e.g., heart failure, pulmonary embolism)., A 72-year-old female patient develops a severe rash after starting a new antiarrhythmic medication, flecainide.The code T46.2X5A is used along with codes for the drug and the type of skin reaction., A 40-year-old patient develops a severe allergic reaction (anaphylaxis) to propafenone.Appropriate codes for anaphylaxis and propafenone are used in addition to T46.2X5A.

Detailed documentation is essential.This should include:* Patient's medical history, including existing conditions and medications.* Complete details of the antidysrhythmic drug administered (name, dosage, route of administration, start and stop dates).* Specific description of the adverse reaction, including onset, duration, severity, and symptoms.* Treatment provided for the adverse reaction.* Results of any relevant diagnostic tests (e.g., blood tests, electrocardiogram).

** This code is used for the initial encounter only.Subsequent encounters require using the appropriate subsequent encounter code (T46.2X5D).Sequelae are coded with T46.2X5S.Always cross-reference with the official ICD-10-CM manual for the most up-to-date information and coding guidelines.

  • Payment Status: Active
  • Modifier TC rule: Not applicable
  • Specialties:Cardiology, Internal Medicine, Emergency Medicine, Toxicology
  • Place of Service:Office, Hospital (Inpatient or Outpatient), Emergency Room, Other
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