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  6. 2024 ICD-10-CM Code T65.21
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code T65.21

Toxic effect of chewing tobacco

ICD-10-CM Code:
T65.21
ICD-10 Code for:
Toxic effect of chewing tobacco
Is Billable?
Not Valid for Submission
Code Navigator:

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)

T65.21 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 chewing tobacco. 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 Toxic effect of chewing tobacco

Non-specific codes like T65.21 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 chewing tobacco:

  • 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

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

Patient Education


Smokeless Tobacco

Many people who chew tobacco or dip snuff think it's safer than smoking. But you don't have to smoke tobacco for it to be dangerous. Chewing or dipping carries risks like:

  • Cancer of the mouth
  • Decay of exposed tooth roots
  • Pulling away of the gums from the teeth
  • White patches or red sores in the mouth that can turn to cancer

Recent research shows the dangers of smokeless tobacco may go beyond the mouth. It might also play a role in other cancers, heart disease and stroke.

Smokeless tobacco contains more nicotine than cigarettes. Nicotine is a highly addictive drug that makes it hard to stop using tobacco once you start. Having a quit date and a quitting plan can help you stop successfully.

NIH: National Institute of Dental and Craniofacial Research


[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.