2021 ICD-10-CM Code T48.3X

Poisoning by, adverse effect of and underdosing of antitussives

Version 2021

Not Valid for Submission

T48.3X 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, adverse effect of and underdosing of antitussives. The code is not specific and is NOT valid for the year 2021 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.

ICD-10:T48.3X
Short Description:Antitussives
Long Description:Poisoning by, adverse effect of and underdosing of antitussives

Code Classification

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 Agents prim act on smooth and skeletal musc and the resp sys (T48). Use the following options for the aplicable episode of care:

Specific Coding for Antitussives

Non-specific codes like T48.3X require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for antitussives:

  • NON-BILLABLE CODE - T48.3X1 for Poisoning by antitussives, accidental (unintentional)
  • BILLABLE CODE - Use T48.3X1A for initial encounter
  • BILLABLE CODE - Use T48.3X1D for subsequent encounter
  • BILLABLE CODE - Use T48.3X1S for sequela
  • NON-BILLABLE CODE - T48.3X2 for Poisoning by antitussives, intentional self-harm
  • BILLABLE CODE - Use T48.3X2A for initial encounter
  • BILLABLE CODE - Use T48.3X2D for subsequent encounter
  • BILLABLE CODE - Use T48.3X2S for sequela
  • NON-BILLABLE CODE - T48.3X3 for Poisoning by antitussives, assault
  • BILLABLE CODE - Use T48.3X3A for initial encounter
  • BILLABLE CODE - Use T48.3X3D for subsequent encounter
  • BILLABLE CODE - Use T48.3X3S for sequela
  • NON-BILLABLE CODE - T48.3X4 for Poisoning by antitussives, undetermined
  • BILLABLE CODE - Use T48.3X4A for initial encounter
  • BILLABLE CODE - Use T48.3X4D for subsequent encounter
  • BILLABLE CODE - Use T48.3X4S for sequela
  • NON-BILLABLE CODE - T48.3X5 for Adverse effect of antitussives
  • BILLABLE CODE - Use T48.3X5A for initial encounter
  • BILLABLE CODE - Use T48.3X5D for subsequent encounter
  • BILLABLE CODE - Use T48.3X5S for sequela
  • NON-BILLABLE CODE - T48.3X6 for Underdosing of antitussives
  • BILLABLE CODE - Use T48.3X6A for initial encounter
  • BILLABLE CODE - Use T48.3X6D for subsequent encounter
  • BILLABLE CODE - Use T48.3X6S for sequela

Clinical Information

Information for Patients


Drug Reactions

Also called: Side effects

Most of the time, medicines make our lives better. They reduce aches and pains, fight infections, and control problems such as high blood pressure or diabetes. But medicines can also cause unwanted reactions.

One problem is interactions, which may occur between

Interactions can change the actions of one or both drugs. The drugs might not work, or you could get side effects.

Side effects are unwanted effects caused by the drugs. Most are mild, such as a stomach aches or drowsiness, and go away after you stop taking the drug. Others can be more serious.

Drug allergies are another type of reaction. They can be mild or life-threatening. Skin reactions, such as hives and rashes, are the most common type. Anaphylaxis, a serious allergic reaction, is more rare.

When you start a new prescription or over-the-counter medication, make sure you understand how to take it correctly. Know which other medications and foods you need to avoid. Ask your health care provider or pharmacist if you have questions.


[Learn More in MedlinePlus]

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)