2022

  1. ICD-10-CM Codes
    2. ›
  2. S00-T88 Injury, poisoning and certain other consequences of external causes
    3. ›
  3. T51-T65 Toxic effects of substances chiefly nonmedicinal as to source
    4. ›
  4. T65- Toxic effect of other and unspecified substances
    5. ›
  5. 2022 ICD-10-CM Diagnosis Code T65.94

2022 ICD-10-CM Diagnosis Code T65.94

Toxic effect of unspecified substance, undetermined

    2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
  • T65.94 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2022 edition of ICD-10-CM T65.94 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of T65.94 - other international versions of ICD-10 T65.94 may differ.
The following code(s) above T65.94 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 T65.94:
  • S00-T88
    2022 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
    2022 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
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 T65.94
T65.91XD …… subsequent encounter
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

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

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