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  6. 2026 ICD-10-CM Code T65.2

2026 ICD-10-CM Diagnosis Code T65.2

Toxic effect of tobacco and nicotine

ICD-10-CM Code:
T65.2
ICD-10 Code for:
Toxic effect of tobacco and nicotine
Is Billable?
Not Valid for Submission
Code Navigator:

T65.2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of toxic effect of tobacco and nicotine. The code is not specific and is NOT valid for the year 2026 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 Toxic effect of tobacco and nicotine

Non-specific codes like T65.2 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 toxic effect of tobacco and nicotine:

  • T65.21 for Toxic effect of chewing tobacco - NON-BILLABLE CODE

  • T65.211 for Toxic effect of chewing tobacco, accidental (unintentional) - NON-BILLABLE CODE

  • Use T65.211A for initial encounter - BILLABLE CODE

  • Use T65.211D for subsequent encounter - BILLABLE CODE

  • Use T65.211S for sequela - BILLABLE CODE

  • T65.212 for Toxic effect of chewing tobacco, intentional self-harm - NON-BILLABLE CODE

  • Use T65.212A for initial encounter - BILLABLE CODE

  • Use T65.212D for subsequent encounter - BILLABLE CODE

  • Use T65.212S for sequela - BILLABLE CODE

  • T65.213 for Toxic effect of chewing tobacco, assault - NON-BILLABLE CODE

  • Use T65.213A for initial encounter - BILLABLE CODE

  • Use T65.213D for subsequent encounter - BILLABLE CODE

  • Use T65.213S for sequela - BILLABLE CODE

  • T65.214 for Toxic effect of chewing tobacco, undetermined - NON-BILLABLE CODE

  • Use T65.214A for initial encounter - BILLABLE CODE

  • Use T65.214D for subsequent encounter - BILLABLE CODE

  • Use T65.214S for sequela - BILLABLE CODE

  • T65.22 for Toxic effect of tobacco cigarettes - NON-BILLABLE CODE

  • T65.221 for Toxic effect of tobacco cigarettes, accidental (unintentional) - NON-BILLABLE CODE

  • Use T65.221A for initial encounter - BILLABLE CODE

  • Use T65.221D for subsequent encounter - BILLABLE CODE

  • Use T65.221S for sequela - BILLABLE CODE

  • T65.222 for Toxic effect of tobacco cigarettes, intentional self-harm - NON-BILLABLE CODE

  • Use T65.222A for initial encounter - BILLABLE CODE

  • Use T65.222D for subsequent encounter - BILLABLE CODE

  • Use T65.222S for sequela - BILLABLE CODE

  • T65.223 for Toxic effect of tobacco cigarettes, assault - NON-BILLABLE CODE

  • Use T65.223A for initial encounter - BILLABLE CODE

  • Use T65.223D for subsequent encounter - BILLABLE CODE

  • Use T65.223S for sequela - BILLABLE CODE

  • T65.224 for Toxic effect of tobacco cigarettes, undetermined - NON-BILLABLE CODE

  • Use T65.224A for initial encounter - BILLABLE CODE

  • Use T65.224D for subsequent encounter - BILLABLE CODE

  • Use T65.224S for sequela - BILLABLE CODE

  • T65.29 for Toxic effect of other tobacco and nicotine - NON-BILLABLE CODE

  • T65.291 for Toxic effect of other tobacco and nicotine, accidental (unintentional) - NON-BILLABLE CODE

  • Use T65.291A for initial encounter - BILLABLE CODE

  • Use T65.291D for subsequent encounter - BILLABLE CODE

  • Use T65.291S for sequela - BILLABLE CODE

  • T65.292 for Toxic effect of other tobacco and nicotine, intentional self-harm - NON-BILLABLE CODE

  • Use T65.292A for initial encounter - BILLABLE CODE

  • Use T65.292D for subsequent encounter - BILLABLE CODE

  • Use T65.292S for sequela - BILLABLE CODE

  • T65.293 for Toxic effect of other tobacco and nicotine, assault - NON-BILLABLE CODE

  • Use T65.293A for initial encounter - BILLABLE CODE

  • Use T65.293D for subsequent encounter - BILLABLE CODE

  • Use T65.293S for sequela - BILLABLE CODE

  • T65.294 for Toxic effect of other tobacco and nicotine, undetermined - NON-BILLABLE CODE

  • Use T65.294A for initial encounter - BILLABLE CODE

  • Use T65.294D for subsequent encounter - BILLABLE CODE

  • Use T65.294S for sequela - BILLABLE CODE

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    S00–T88
    • Toxic effects of substances chiefly nonmedicinal as to source
      T51-T65
      • Toxic effect of other and unspecified substances
        T65

Coding Guidelines

The appropriate 7th character is to be added to each code from block Toxic effect of other and unspecified substances (T65). Use the following options for the aplicable episode of care:

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

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • nicotine dependence F17

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Index of External Cause of Injuries

References found for this diagnosis code in the External Cause of Injuries Index:

    • Poisoning(acute)
      • nicotine (tobacco)
    • Poisoning(acute)
      • tobacco (nicotine)

Patient Education


Smoking

What are the health effects of smoking?

There's no way around it; smoking is bad for your health. It harms nearly every organ of the body, even some that you would not expect. Cigarette smoking causes many cancers and other health problems. It is also the cause of nearly one in five deaths in the United States.

Some of the many health problems that smoking can cause include:

  • Cancers. Smoking is the most common cause of lung and oral cancers. But it can also cause cancer in many other parts of your body, such as in your larynx (voice box), esophagus, throat, bladder, kidney, liver, stomach, pancreas, colon and rectum, and cervix. It can also cause acute myeloid leukemia (AML).
  • Lung diseases. Smoking is the most common cause of COPD. It can also worsen asthma and raise your risk of pneumonia.
  • Cardiovascular diseases. Smoking can damage your blood vessels and make them thicken and grow narrower. This makes your heart beat faster and raises your blood pressure. Smoking also increases your risk of blood clots and stroke.
  • Vision problems. Smoking can raise your risk of cataracts and cause macular degeneration (AMD).

You have a greater chance of certain pregnancy problems if you smoke while pregnant. Your baby is also at higher risk of dying of sudden infant death syndrome (SIDS).

Smoking also causes addiction to nicotine, a stimulant drug that is in tobacco. Nicotine addiction makes it much harder for people to quit smoking.

What are the health risks of secondhand smoke?

Your smoke is also bad for other people. If they breathe in your secondhand smoke, they can get many of the same problems as smokers do. These problems can include heart disease and lung cancer. Children exposed to secondhand smoke have a higher risk of ear infections, colds, pneumonia, bronchitis, and more severe asthma. If you breathe secondhand smoke while pregnant, you're more likely to have preterm labor and a baby with low birth weight.

Are other forms of tobacco also dangerous?

Besides cigarettes, there are several other forms of tobacco. Some people smoke tobacco in cigars and water pipes (hookahs). These forms of tobacco also contain harmful chemicals and nicotine. Some cigars contain as much tobacco as an entire pack of cigarettes.

E-cigarettes often look like cigarettes, but they work differently. They are battery-operated smoking devices. Using an e-cigarette is called vaping. Researchers still have a lot to learn about the health effects of using e-cigarettes. We do know that they contain nicotine, which is highly addictive and a health danger to you and your fetus if you are pregnant, children, and teens. And e-cigarettes also expose non-smokers to secondhand aerosols (rather than secondhand smoke), which contain harmful chemicals.

Smokeless tobacco, such as chewing tobacco and snuff, is also bad for your health. Smokeless tobacco can cause certain cancers, including oral cancer. It also increases your risk of getting heart disease, gum disease, and oral lesions.

Why should I quit?

Remember, there is no safe level of tobacco use. Smoking even just one cigarette per day over a lifetime can cause smoking-related cancers and premature death. Quitting smoking can reduce your risk of health problems and add years to your life. The earlier you quit, the greater the benefit. Some immediate benefits of quitting include:

  • Lower heart rate and blood pressure
  • Less carbon monoxide in the blood (carbon monoxide reduces the blood's ability to carry oxygen)
  • Better circulation
  • Less coughing and wheezing

Quitting smoking can be challenging, but it is so important for your health. Contact your health care provider if you need help quitting.


[Learn More in MedlinePlus]

Code History

  • FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026
  • FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025
  • 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.