2020 ICD-10-CM Diagnosis Code T33.812

Superficial frostbite of left ankle

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • T33.812 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 T33.812 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of T33.812 - other international versions of ICD-10 T33.812 may differ.
The following code(s) above T33.812 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 T33.812:
  • 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
  • T33-T34
    2020 ICD-10-CM Range T33-T34


    Type 2 Excludes
    • hypothermia and other effects of reduced temperature (T68, T69.-)
  • T33
    ICD-10-CM Diagnosis Code T33

    Superficial frostbite

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    • frostbite with partial thickness skin loss
    Superficial frostbite
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 T33.812
T33.72 Superficial frostbite of left knee and lower leg
T33.72XA …… initial encounter
T33.72XD …… subsequent encounter
T33.72XS …… sequela
T33.8 Superficial frostbite of ankle, foot, and toe(s)
T33.81 Superficial frostbite of ankle
T33.811 Superficial frostbite of right ankle
T33.811A …… initial encounter
T33.811D …… subsequent encounter
T33.811S …… sequela
T33.812 Superficial frostbite of left ankle
T33.812A …… initial encounter
T33.812D …… subsequent encounter
T33.812S …… sequela
T33.819 Superficial frostbite of unspecified ankle
T33.819A …… initial encounter
T33.819D …… subsequent encounter
T33.819S …… sequela
T33.82 Superficial frostbite of foot
T33.821 Superficial frostbite of right foot
T33.821A …… initial encounter

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