Corrosion of unspecified degree of wrist and hand T23.4-

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.
  • external cause code to identify place (
    ICD-10-CM Diagnosis Code Y92

    Place of occurrence of the external cause

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • The following category is for use, when relevant, to identify the place of occurrence of the external cause. Use in conjunction with an activity code.
    • Place of occurrence should be recorded only at the initial encounter for treatment
    Y92
    )
Code First
Code First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, 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.
  • (T51-T65
    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.-)
    • T51 Toxic effect of alcohol
    • T52 Toxic effect of organic solvents
    • T53 Toxic effect of halogen derivatives of a...
    • T54 Toxic effect of corrosive substances
    • T55 Toxic effect of soaps and detergents
    • T56 Toxic effect of metals
    • T57 Toxic effect of other inorganic substanc...
    • T58 Toxic effect of carbon monoxide
    • T59 Toxic effect of other gases, fumes and v...
    • T60 Toxic effect of pesticides
    • T61 Toxic effect of noxious substances eaten...
    • T62 Toxic effect of other noxious substances...
    • T63 Toxic effect of contact with venomous an...
    • T64 Toxic effect of aflatoxin and other myco...
    • T65 Toxic effect of other and unspecified su...
    ) to identify chemical and intent
  • T23.4 Corrosion of unspecified degree of wrist and hand
    • T23.40 Corrosion of unspecified degree of hand, unspecified site
      • T23.401 Corrosion of unspecified degree of right hand, unspecified site
      • T23.402 Corrosion of unspecified degree of left hand, unspecified site
      • T23.409 Corrosion of unspecified degree of unspecified hand, unspecified site
    • T23.41 Corrosion of unspecified degree of thumb (nail)
      • T23.411 Corrosion of unspecified degree of right thumb (nail)
      • T23.412 Corrosion of unspecified degree of left thumb (nail)
      • T23.419 Corrosion of unspecified degree of unspecified thumb (nail)
    • T23.42 Corrosion of unspecified degree of single finger (nail) except thumb
      • T23.421 Corrosion of unspecified degree of single right finger (nail) except thumb
      • T23.422 Corrosion of unspecified degree of single left finger (nail) except thumb
      • T23.429 Corrosion of unspecified degree of unspecified single finger (nail) except thumb
    • T23.43 Corrosion of unspecified degree of multiple fingers (nail), not including thumb
      • T23.431 Corrosion of unspecified degree of multiple right fingers (nail), not including thumb
      • T23.432 Corrosion of unspecified degree of multiple left fingers (nail), not including thumb
      • T23.439 Corrosion of unspecified degree of unspecified multiple fingers (nail), not including thumb
    • T23.44 Corrosion of unspecified degree of multiple fingers (nail), including thumb
      • T23.441 Corrosion of unspecified degree of multiple right fingers (nail), including thumb
      • T23.442 Corrosion of unspecified degree of multiple left fingers (nail), including thumb
      • T23.449 Corrosion of unspecified degree of unspecified multiple fingers (nail), including thumb
    • T23.45 Corrosion of unspecified degree of palm
    • T23.46 Corrosion of unspecified degree of back of hand
      • T23.461 Corrosion of unspecified degree of back of right hand
      • T23.462 Corrosion of unspecified degree of back of left hand
      • T23.469 Corrosion of unspecified degree of back of unspecified hand
    • T23.47 Corrosion of unspecified degree of wrist
    • T23.49 Corrosion of unspecified degree of multiple sites of wrist and hand
      • T23.491 Corrosion of unspecified degree of multiple sites of right wrist and hand
      • T23.492 Corrosion of unspecified degree of multiple sites of left wrist and hand
      • T23.499 Corrosion of unspecified degree of multiple sites of unspecified wrist and hand