2021 ICD-10-CM Code T65.9

Toxic effect of unspecified substance

Version 2021

Not Valid for Submission

T65.9 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 unspecified substance. 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.

Unspecified diagnosis codes like T65.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

ICD-10:T65.9
Short Description:Toxic effect of unspecified substance
Long Description:Toxic effect of unspecified substance

Code Classification

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:

Specific Coding for Toxic effect of unspecified substance

Non-specific codes like T65.9 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 toxic effect of unspecified substance:

  • NON-BILLABLE CODE - T65.91 for Toxic effect of unspecified substance, accidental (unintentional)
  • BILLABLE CODE - Use T65.91XA for initial encounter
  • BILLABLE CODE - Use T65.91XD for subsequent encounter
  • BILLABLE CODE - Use T65.91XS for sequela
  • NON-BILLABLE CODE - T65.92 for Toxic effect of unspecified substance, intentional self-harm
  • BILLABLE CODE - Use T65.92XA for initial encounter
  • BILLABLE CODE - Use T65.92XD for subsequent encounter
  • BILLABLE CODE - Use T65.92XS for sequela
  • NON-BILLABLE CODE - T65.93 for Toxic effect of unspecified substance, assault
  • BILLABLE CODE - Use T65.93XA for initial encounter
  • BILLABLE CODE - Use T65.93XD for subsequent encounter
  • BILLABLE CODE - Use T65.93XS for sequela
  • NON-BILLABLE CODE - T65.94 for Toxic effect of unspecified substance, undetermined
  • BILLABLE CODE - Use T65.94XA for initial encounter
  • BILLABLE CODE - Use T65.94XD for subsequent encounter
  • BILLABLE CODE - Use T65.94XS for sequela

Information for Patients


Poisoning

A poison is any substance that is harmful to your body. You might swallow it, inhale it, inject it, or absorb it through your skin. Any substance can be poisonous if too much is taken. Poisons can include

The effects of poisoning range from short-term illness to brain damage, coma, and death. To prevent poisoning it is important to use and store products exactly as their labels say. Keep dangerous products where children can't get to them. Treatment for poisoning depends on the type of poison. If you suspect someone has been poisoned, call your local poison control center at 1-800-222-1222 right away.


[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)