Version 2024

2024 ICD-10-CM Diagnosis Code T56.81

Toxic effect of thallium

ICD-10-CM Code:
T56.81
ICD-10 Code for:
Toxic effect of thallium
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 metals
        (T56)

T56.81 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 thallium. 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 thallium

Non-specific codes like T56.81 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 thallium:

  • T56.811 for Toxic effect of thallium, accidental (unintentional) - NON-BILLABLE CODE

  • Use T56.811A for initial encounter - BILLABLE CODE

  • Use T56.811D for subsequent encounter - BILLABLE CODE

  • Use T56.811S for sequela - BILLABLE CODE

  • T56.812 for Toxic effect of thallium, intentional self-harm - NON-BILLABLE CODE

  • Use T56.812A for initial encounter - BILLABLE CODE

  • Use T56.812D for subsequent encounter - BILLABLE CODE

  • Use T56.812S for sequela - BILLABLE CODE

  • T56.813 for Toxic effect of thallium, assault - NON-BILLABLE CODE

  • Use T56.813A for initial encounter - BILLABLE CODE

  • Use T56.813D for subsequent encounter - BILLABLE CODE

  • Use T56.813S for sequela - BILLABLE CODE

  • T56.814 for Toxic effect of thallium, undetermined - NON-BILLABLE CODE

  • Use T56.814A for initial encounter - BILLABLE CODE

  • Use T56.814D for subsequent encounter - BILLABLE CODE

  • Use T56.814S for sequela - BILLABLE CODE

Coding Guidelines

The appropriate 7th character is to be added to each code from block Toxic effect of metals (T56). 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 - 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.