2020 ICD-10-CM Diagnosis Code T59.4X4A

Toxic effect of chlorine gas, undetermined, initial encounter

    2016 2017 2018 2019 2020 Billable/Specific Code
  • T59.4X4A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Toxic effect of chlorine gas, undetermined, init encntr
  • The 2020 edition of ICD-10-CM T59.4X4A became effective on October 1, 2019.
  • This is the American ICD-10-CM version of T59.4X4A - other international versions of ICD-10 T59.4X4A may differ.
The following code(s) above T59.4X4A contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to T59.4X4A:
  • S00-T88
    2020 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • T51-T65
    2020 ICD-10-CM Range T51-T65

    Toxic effects of substances chiefly nonmedicinal as to source

    Note
    • When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.
    Type 1 Excludes
    • contact with and (suspected) exposure to toxic substances (Z77.-)
    Use Additional
    • code(s):
    • for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
    • personal history of foreign body fully removed (Z87.821)
    • to identify any retained foreign body, if applicable (Z18.-)
    Toxic effects of substances chiefly nonmedicinal as to source
  • T59
    ICD-10-CM Diagnosis Code T59

    Toxic effect of other gases, fumes and vapors

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • aerosol propellants
    Type 1 Excludes
    • chlorofluorocarbons (T53.5)
    Toxic effect of other gases, fumes and vapors
ICD-10-CM T59.4X4A is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 917 Poisoning and toxic effects of drugs with mcc
  • 918 Poisoning and toxic effects of drugs without mcc

Convert T59.4X4A to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To T59.4X4A
T59.4X1S …… sequela
T59.4X2 Toxic effect of chlorine gas, intentional self-harm
T59.4X2A …… initial encounter
T59.4X2D …… subsequent encounter
T59.4X2S …… sequela
T59.4X3 Toxic effect of chlorine gas, assault
T59.4X3A …… initial encounter
T59.4X3D …… subsequent encounter
T59.4X3S …… sequela
T59.4X4 Toxic effect of chlorine gas, undetermined
T59.4X4A …… initial encounter
T59.4X4D …… subsequent encounter
T59.4X4S …… sequela
T59.5 Toxic effect of fluorine gas and hydrogen fluoride
T59.5X Toxic effect of fluorine gas and hydrogen fluoride
T59.5X1 Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional)
T59.5X1A …… initial encounter
T59.5X1D …… subsequent encounter
T59.5X1S …… sequela
T59.5X2 Toxic effect of fluorine gas and hydrogen fluoride, intentional self-harm
T59.5X2A …… initial encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.