2020 ICD-10-CM Diagnosis Code T56

Toxic effect of metals

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • T56 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM T56 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of T56 - other international versions of ICD-10 T56 may differ.
Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code to identify any retained metal foreign body, if applicable (
    ICD-10-CM Diagnosis Code Z18.0

    Retained radioactive fragments

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Z18.0-
    ,
    ICD-10-CM Diagnosis Code T18.1

    Foreign body in esophagus

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • foreign body in respiratory tract (T17.-)
    T18.1-
    )
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as T56. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • arsenic and its compounds (
    ICD-10-CM Diagnosis Code T57.0

    Toxic effect of arsenic and its compounds

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    T57.0
    )
  • manganese and its compounds (
    ICD-10-CM Diagnosis Code T57.2

    Toxic effect of manganese and its compounds

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    T57.2
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • toxic effects of fumes and vapors of metals
  • toxic effects of metals from all sources, except medicinal substances
The following code(s) above T56 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 T56:
  • 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
Clinical Information
  • Acute or chronic disease due to exposure to a metal or its salts.
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 T56
T55.1X2D …… subsequent encounter
T55.1X2S …… sequela
T55.1X3 Toxic effect of detergents, assault
T55.1X3A …… initial encounter
T55.1X3D …… subsequent encounter
T55.1X3S …… sequela
T55.1X4 Toxic effect of detergents, undetermined
T55.1X4A …… initial encounter
T55.1X4D …… subsequent encounter
T55.1X4S …… sequela
T56 Toxic effect of metals
T56.0 Toxic effects of lead and its compounds
T56.0X Toxic effects of lead and its compounds
T56.0X1 Toxic effect of lead and its compounds, accidental (unintentional)
T56.0X1A …… initial encounter
T56.0X1D …… subsequent encounter
T56.0X1S …… sequela
T56.0X2 Toxic effect of lead and its compounds, intentional self-harm
T56.0X2A …… initial encounter
T56.0X2D …… subsequent encounter
T56.0X2S …… sequela

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