Version 2024

2024 ICD-10-CM Diagnosis Code T23

Burn and corrosion of wrist and hand

ICD-10-CM Code:
T23
ICD-10 Code for:
Burn and corrosion of wrist and hand
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Burns and corrosions of external body surface, specified by site
      (T20-T25)
      • Burn and corrosion of wrist and hand
        (T23)

T23 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of burn and corrosion of wrist and hand. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Burn and corrosion of wrist and hand

Non-specific codes like T23 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for burn and corrosion of wrist and hand:

  • T23.0 for Burn of unspecified degree of wrist and hand - NON-BILLABLE CODE

  • T23.00 for Burn of unspecified degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.01 for Burn of unspecified degree of thumb (nail) - NON-BILLABLE CODE

  • T23.02 for Burn of unspecified degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.03 for Burn of unspecified degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.04 for Burn of unspecified degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.05 for Burn of unspecified degree of palm - NON-BILLABLE CODE

  • T23.06 for Burn of unspecified degree of back of hand - NON-BILLABLE CODE

  • T23.07 for Burn of unspecified degree of wrist - NON-BILLABLE CODE

  • T23.09 for Burn of unspecified degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.1 for Burn of first degree of wrist and hand - NON-BILLABLE CODE

  • T23.10 for Burn of first degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.11 for Burn of first degree of thumb (nail) - NON-BILLABLE CODE

  • T23.12 for Burn of first degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.13 for Burn of first degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.14 for Burn of first degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.15 for Burn of first degree of palm - NON-BILLABLE CODE

  • T23.16 for Burn of first degree of back of hand - NON-BILLABLE CODE

  • T23.17 for Burn of first degree of wrist - NON-BILLABLE CODE

  • T23.19 for Burn of first degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.2 for Burn of second degree of wrist and hand - NON-BILLABLE CODE

  • T23.20 for Burn of second degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.21 for Burn of second degree of thumb (nail) - NON-BILLABLE CODE

  • T23.22 for Burn of second degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.23 for Burn of second degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.24 for Burn of second degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.25 for Burn of second degree of palm - NON-BILLABLE CODE

  • T23.26 for Burn of second degree of back of hand - NON-BILLABLE CODE

  • T23.27 for Burn of second degree of wrist - NON-BILLABLE CODE

  • T23.29 for Burn of second degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.3 for Burn of third degree of wrist and hand - NON-BILLABLE CODE

  • T23.30 for Burn of third degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.31 for Burn of third degree of thumb (nail) - NON-BILLABLE CODE

  • T23.32 for Burn of third degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.33 for Burn of third degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.34 for Burn of third degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.35 for Burn of third degree of palm - NON-BILLABLE CODE

  • T23.36 for Burn of third degree of back of hand - NON-BILLABLE CODE

  • T23.37 for Burn of third degree of wrist - NON-BILLABLE CODE

  • T23.39 for Burn of third degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.4 for Corrosion of unspecified degree of wrist and hand - NON-BILLABLE CODE

  • T23.40 for Corrosion of unspecified degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.41 for Corrosion of unspecified degree of thumb (nail) - NON-BILLABLE CODE

  • T23.42 for Corrosion of unspecified degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.43 for Corrosion of unspecified degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.44 for Corrosion of unspecified degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.45 for Corrosion of unspecified degree of palm - NON-BILLABLE CODE

  • T23.46 for Corrosion of unspecified degree of back of hand - NON-BILLABLE CODE

  • T23.47 for Corrosion of unspecified degree of wrist - NON-BILLABLE CODE

  • T23.49 for Corrosion of unspecified degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.5 for Corrosion of first degree of wrist and hand - NON-BILLABLE CODE

  • T23.50 for Corrosion of first degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.51 for Corrosion of first degree of thumb (nail) - NON-BILLABLE CODE

  • T23.52 for Corrosion of first degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.53 for Corrosion of first degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.54 for Corrosion of first degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.55 for Corrosion of first degree of palm - NON-BILLABLE CODE

  • T23.56 for Corrosion of first degree of back of hand - NON-BILLABLE CODE

  • T23.57 for Corrosion of first degree of wrist - NON-BILLABLE CODE

  • T23.59 for Corrosion of first degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.6 for Corrosion of second degree of wrist and hand - NON-BILLABLE CODE

  • T23.60 for Corrosion of second degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.61 for Corrosion of second degree of thumb (nail) - NON-BILLABLE CODE

  • T23.62 for Corrosion of second degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.63 for Corrosion of second degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.64 for Corrosion of second degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.65 for Corrosion of second degree of palm - NON-BILLABLE CODE

  • T23.66 for Corrosion of second degree of back of hand - NON-BILLABLE CODE

  • T23.67 for Corrosion of second degree of wrist - NON-BILLABLE CODE

  • T23.69 for Corrosion of second degree of multiple sites of wrist and hand - NON-BILLABLE CODE

  • T23.7 for Corrosion of third degree of wrist and hand - NON-BILLABLE CODE

  • T23.70 for Corrosion of third degree of hand, unspecified site - NON-BILLABLE CODE

  • T23.71 for Corrosion of third degree of thumb (nail) - NON-BILLABLE CODE

  • T23.72 for Corrosion of third degree of single finger (nail) except thumb - NON-BILLABLE CODE

  • T23.73 for Corrosion of third degree of multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • T23.74 for Corrosion of third degree of multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • T23.75 for Corrosion of third degree of palm - NON-BILLABLE CODE

  • T23.76 for Corrosion of third degree of back of hand - NON-BILLABLE CODE

  • T23.77 for Corrosion of third degree of wrist - NON-BILLABLE CODE

  • T23.79 for Corrosion of third degree of multiple sites of wrist and hand - NON-BILLABLE CODE

Coding Guidelines

The ICD-10-CM makes a distinction between burns and corrosions. The burn codes are for thermal burns, except sunburns, that come from a heat source, such as a fire or hot appliance. The burn codes are also for burns resulting from electricity and radiation. Corrosions are burns due to chemicals. The guidelines are the same for burns and corrosions.

Sequence first the code that reflects the highest degree of burn when more than one burn is present.

  • When the reason for the admission or encounter is for treatment of external multiple burns, sequence first the code that reflects the burn of the highest degree.
  • When a patient has both internal and external burns, the circumstances of admission govern the selection of the principal diagnosis or first-listed diagnosis.
  • When a patient is admitted for burn injuries and other related conditions such as smoke inhalation and/or respiratory failure, the circumstances of admission govern the selection of the principal or first-listed diagnosis.

Current burns (T20-T25) are classified by depth, extent and by agent (X code). Burns are classified by depth as first degree (erythema), second degree (blistering), and third degree (full-thickness involvement).

Classify burns of the same local site (three-character category level, T20-T28) but of different degrees to the subcategory identifying the highest degree recorded in the diagnosis.

The appropriate 7th character is to be added to each code from block Burn and corrosion of wrist and hand (T23). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


7th Character Note

7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • The appropriate 7th character is to be added to each code from category T23

7th Character

7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient Education


Burns

A burn is damage to your body's tissues caused by heat, chemicals, electricity, sunlight, or radiation. Scalds from hot liquids and steam, building fires and flammable liquids and gases are the most common causes of burns. Another kind is an inhalation injury, caused by breathing smoke.

There are three types of burns:

  • First-degree burns damage only the outer layer of skin
  • Second-degree burns damage the outer layer and the layer underneath
  • Third-degree burns damage or destroy the deepest layer of skin and tissues underneath

Burns can cause swelling, blistering, scarring and, in serious cases, shock, and even death. They also can lead to infections because they damage your skin's protective barrier. Treatment for burns depends on the cause of the burn, how deep it is, and how much of the body it covers. Antibiotic creams can prevent or treat infections. For more serious burns, treatment may be needed to clean the wound, replace the skin, and make sure the patient has enough fluids and nutrition.

NIH: National Institute of General Medical Sciences


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.