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  6. 2024 ICD-10-CM Code T43.65
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code T43.65

Poisoning by, adverse effect of and underdosing of methamphetamines

ICD-10-CM Code:
T43.65
ICD-10 Code for:
Methamphetamines
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Poisoning by, adverse effect of and underdosing of drugs, medicaments and biological substances
      (T36-T50)
      • Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified
        (T43)

T43.65 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 methamphetamines. 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 Methamphetamines

Non-specific codes like T43.65 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 methamphetamines:

  • T43.651 for Poisoning by methamphetamines accidental (unintentional) - NON-BILLABLE CODE

  • Use T43.651A for initial encounter - BILLABLE CODE

  • Use T43.651D for subsequent encounter - BILLABLE CODE

  • Use T43.651S for sequela - BILLABLE CODE

  • T43.652 for Poisoning by methamphetamines intentional self-harm - NON-BILLABLE CODE

  • Use T43.652A for initial encounter - BILLABLE CODE

  • Use T43.652D for subsequent encounter - BILLABLE CODE

  • Use T43.652S for sequela - BILLABLE CODE

  • T43.653 for Poisoning by methamphetamines, assault - NON-BILLABLE CODE

  • Use T43.653A for initial encounter - BILLABLE CODE

  • Use T43.653D for subsequent encounter - BILLABLE CODE

  • Use T43.653S for sequela - BILLABLE CODE

  • T43.654 for Poisoning by methamphetamines, undetermined - NON-BILLABLE CODE

  • Use T43.654A for initial encounter - BILLABLE CODE

  • Use T43.654D for subsequent encounter - BILLABLE CODE

  • Use T43.654S for sequela - BILLABLE CODE

  • T43.655 for Adverse effect of methamphetamines - NON-BILLABLE CODE

  • Use T43.655A for initial encounter - BILLABLE CODE

  • Use T43.655D for subsequent encounter - BILLABLE CODE

  • Use T43.655S for sequela - BILLABLE CODE

  • T43.656 for Underdosing of methamphetamines - NON-BILLABLE CODE

  • Use T43.656A for initial encounter - BILLABLE CODE

  • Use T43.656D for subsequent encounter - BILLABLE CODE

  • Use T43.656S for sequela - BILLABLE CODE

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 psychotropic drugs, not elsewhere classified (T43). Use the following options for the aplicable episode of care:

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

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - Code Added, effective from 10/1/2022 through 9/30/2023