2021 ICD-10-CM Diagnosis Code T25.539A

Corrosion of first degree of unspecified toe(s) (nail), initial encounter

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • T25.539A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Corrosion of first degree of unsp toe(s) (nail), init encntr
  • The 2021 edition of ICD-10-CM T25.539A became effective on October 1, 2020.
  • This is the American ICD-10-CM version of T25.539A - other international versions of ICD-10 T25.539A may differ.
The following code(s) above T25.539A 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 T25.539A:
  • S00-T88
    2021 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
  • T20-T25
    2021 ICD-10-CM Range T20-T25

    Burns and corrosions of external body surface, specified by site

    Includes
    • burns and corrosions of first degree [erythema]
    • burns and corrosions of second degree [blisters][epidermal loss]
    • burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
    Use Additional
    • code from category T31 or T32 to identify extent of body surface involved
    Burns and corrosions of external body surface, specified by site
  • T25.5
    ICD-10-CM Diagnosis Code T25.5

    Corrosion of first degree of ankle and foot

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code First
    • (T51-T65) to identify chemical and intent
    Use Additional
    • external cause code to identify place (Y92)
    Corrosion of first degree of ankle and foot
ICD-10-CM T25.539A is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 935 Non-extensive burns

Convert T25.539A 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
ICD-10-CM Codes Adjacent To T25.539A
T25.53 Corrosion of first degree of toe(s) (nail)
T25.531 Corrosion of first degree of right toe(s) (nail)
T25.531A …… initial encounter
T25.531D …… subsequent encounter
T25.531S …… sequela
T25.532 Corrosion of first degree of left toe(s) (nail)
T25.532A …… initial encounter
T25.532D …… subsequent encounter
T25.532S …… sequela
T25.539 Corrosion of first degree of unspecified toe(s) (nail)
T25.539A …… initial encounter
T25.539D …… subsequent encounter
T25.539S …… sequela
T25.59 Corrosion of first degree of multiple sites of ankle and foot
T25.591 Corrosion of first degree of multiple sites of right ankle and foot
T25.591A …… initial encounter
T25.591D …… subsequent encounter
T25.591S …… sequela
T25.592 Corrosion of first degree of multiple sites of left ankle and foot
T25.592A …… initial encounter
T25.592D …… subsequent encounter

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