2022 ICD-10-CM Diagnosis Code T65.94XA

Toxic effect of unspecified substance, undetermined, initial encounter

    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • T65.94XA is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Toxic effect of unsp substance, undetermined, init encntr
  • The 2022 edition of ICD-10-CM T65.94XA became effective on October 1, 2021.
  • This is the American ICD-10-CM version of T65.94XA - other international versions of ICD-10 T65.94XA may differ.
The following code(s) above T65.94XA 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 T65.94XA:
  • S00-T88
    2022 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    • 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
    2022 ICD-10-CM Range T51-T65

    Toxic effects of substances chiefly nonmedicinal as to source

    • 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
Approximate Synonyms
  • Acute chemical conjunctivitis, both eyes
  • Bilateral acute chemical conjunctivitis
  • Bilateral toxic optic neuropathy
  • Bilateral toxic optic neuropathy (eye condition)
  • Cholinergic crisis
  • Drug-induced myasthenia
  • Left acute chemical conjunctivitis
  • Left toxic optic neuropathy
  • Left toxic optic neuropathy (eye condition)
  • Neuropathy (nerve damage), toxic, non facial
  • Polyneuropathy (multiple nerve disorder), toxic
  • Right acute chemical conjunctivitis
  • Right toxic optic neuropathy
  • Right toxic optic neuropathy (eye condition)
  • Toxic myasthenia, drug induced
  • Toxic nonfacial neuropathy
  • Toxic polyneuropathy
ICD-10-CM T65.94XA is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 917 Poisoning and toxic effects of drugs with mcc
  • 918 Poisoning and toxic effects of drugs without mcc

Convert T65.94XA 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
ICD-10-CM Codes Adjacent To T65.94XA
T65.91XS …… sequela
T65.92 Toxic effect of unspecified substance, intentional self-harm
T65.92XA …… initial encounter
T65.92XD …… subsequent encounter
T65.92XS …… sequela
T65.93 Toxic effect of unspecified substance, assault
T65.93XA …… initial encounter
T65.93XD …… subsequent encounter
T65.93XS …… sequela
T65.94 Toxic effect of unspecified substance, undetermined
T65.94XA …… initial encounter
T65.94XD …… subsequent encounter
T65.94XS …… sequela
T66 Radiation sickness, unspecified
T66.XXXA Radiation sickness, unspecified, initial encounter
T66.XXXD Radiation sickness, unspecified, subsequent encounter
T66.XXXS Radiation sickness, unspecified, sequela
T67 Effects of heat and light
T67.0 Heatstroke and sunstroke
T67.01 Heatstroke and sunstroke
T67.01XA …… initial encounter

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