2020 ICD-10-CM Diagnosis Code T27.6

Corrosion of other parts of respiratory tract

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • T27.6 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 T27.6 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of T27.6 - other international versions of ICD-10 T27.6 may differ.
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

    • 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
The following code(s) above T27.6 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 T27.6:
  • S00-T88
    2020 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
  • T27
    ICD-10-CM Diagnosis Code T27

    Burn and corrosion of respiratory tract

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Use Additional
    • external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)
    Burn and corrosion of respiratory tract
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

Diagnosis Index entries containing back-references to T27.6:
  • Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal) T30.4
    ICD-10-CM Diagnosis Code T30.4

    Corrosion of unspecified body region, unspecified degree

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • This code is not for inpatient use. Code to specified site and degree of corrosion
    • Corrosion NOS
    • Multiple corrosion NOS
    • respiratory tract T27.7
      ICD-10-CM Diagnosis Code T27.7

      Corrosion of respiratory tract, part unspecified

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      Code First
      • (T51-T65) to identify chemical and intent
      • specified part NEC T27.6

ICD-10-CM Codes Adjacent To T27.6
T27.3XXD …… subsequent encounter
T27.3XXS …… sequela
T27.4 Corrosion of larynx and trachea
T27.4XXA …… initial encounter
T27.4XXD …… subsequent encounter
T27.4XXS …… sequela
T27.5 Corrosion involving larynx and trachea with lung
T27.5XXA …… initial encounter
T27.5XXD …… subsequent encounter
T27.5XXS …… sequela
T27.6 Corrosion of other parts of respiratory tract
T27.6XXA …… initial encounter
T27.6XXD …… subsequent encounter
T27.6XXS …… sequela
T27.7 Corrosion of respiratory tract, part unspecified
T27.7XXA …… initial encounter
T27.7XXD …… subsequent encounter
T27.7XXS …… sequela
T28 Burn and corrosion of other internal organs
T28.0 Burn of mouth and pharynx
T28.0XXA …… initial encounter

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