Version 2024

2024 ICD-10-CM Diagnosis Code T23.5

Corrosion of first degree of wrist and hand

ICD-10-CM Code:
T23.5
ICD-10 Code for:
Corrosion of first degree 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)

T23.5 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of corrosion of first degree 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 Corrosion of first degree of wrist and hand

Non-specific codes like T23.5 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 corrosion of first degree of wrist and hand:

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

  • T23.501 for Corrosion of first degree of right hand, unspecified site - NON-BILLABLE CODE

  • Use T23.501A for initial encounter - BILLABLE CODE

  • Use T23.501D for subsequent encounter - BILLABLE CODE

  • Use T23.501S for sequela - BILLABLE CODE

  • T23.502 for Corrosion of first degree of left hand, unspecified site - NON-BILLABLE CODE

  • Use T23.502A for initial encounter - BILLABLE CODE

  • Use T23.502D for subsequent encounter - BILLABLE CODE

  • Use T23.502S for sequela - BILLABLE CODE

  • T23.509 for Corrosion of first degree of unspecified hand, unspecified site - NON-BILLABLE CODE

  • Use T23.509A for initial encounter - BILLABLE CODE

  • Use T23.509D for subsequent encounter - BILLABLE CODE

  • Use T23.509S for sequela - BILLABLE CODE

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

  • T23.511 for Corrosion of first degree of right thumb (nail) - NON-BILLABLE CODE

  • Use T23.511A for initial encounter - BILLABLE CODE

  • Use T23.511D for subsequent encounter - BILLABLE CODE

  • Use T23.511S for sequela - BILLABLE CODE

  • T23.512 for Corrosion of first degree of left thumb (nail) - NON-BILLABLE CODE

  • Use T23.512A for initial encounter - BILLABLE CODE

  • Use T23.512D for subsequent encounter - BILLABLE CODE

  • Use T23.512S for sequela - BILLABLE CODE

  • T23.519 for Corrosion of first degree of unspecified thumb (nail) - NON-BILLABLE CODE

  • Use T23.519A for initial encounter - BILLABLE CODE

  • Use T23.519D for subsequent encounter - BILLABLE CODE

  • Use T23.519S for sequela - BILLABLE CODE

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

  • T23.521 for Corrosion of first degree of single right finger (nail) except thumb - NON-BILLABLE CODE

  • Use T23.521A for initial encounter - BILLABLE CODE

  • Use T23.521D for subsequent encounter - BILLABLE CODE

  • Use T23.521S for sequela - BILLABLE CODE

  • T23.522 for Corrosion of first degree of single left finger (nail) except thumb - NON-BILLABLE CODE

  • Use T23.522A for initial encounter - BILLABLE CODE

  • Use T23.522D for subsequent encounter - BILLABLE CODE

  • Use T23.522S for sequela - BILLABLE CODE

  • T23.529 for Corrosion of first degree of unspecified single finger (nail) except thumb - NON-BILLABLE CODE

  • Use T23.529A for initial encounter - BILLABLE CODE

  • Use T23.529D for subsequent encounter - BILLABLE CODE

  • Use T23.529S for sequela - BILLABLE CODE

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

  • T23.531 for Corrosion of first degree of multiple right fingers (nail), not including thumb - NON-BILLABLE CODE

  • Use T23.531A for initial encounter - BILLABLE CODE

  • Use T23.531D for subsequent encounter - BILLABLE CODE

  • Use T23.531S for sequela - BILLABLE CODE

  • T23.532 for Corrosion of first degree of multiple left fingers (nail), not including thumb - NON-BILLABLE CODE

  • Use T23.532A for initial encounter - BILLABLE CODE

  • Use T23.532D for subsequent encounter - BILLABLE CODE

  • Use T23.532S for sequela - BILLABLE CODE

  • T23.539 for Corrosion of first degree of unspecified multiple fingers (nail), not including thumb - NON-BILLABLE CODE

  • Use T23.539A for initial encounter - BILLABLE CODE

  • Use T23.539D for subsequent encounter - BILLABLE CODE

  • Use T23.539S for sequela - BILLABLE CODE

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

  • T23.541 for Corrosion of first degree of multiple right fingers (nail), including thumb - NON-BILLABLE CODE

  • Use T23.541A for initial encounter - BILLABLE CODE

  • Use T23.541D for subsequent encounter - BILLABLE CODE

  • Use T23.541S for sequela - BILLABLE CODE

  • T23.542 for Corrosion of first degree of multiple left fingers (nail), including thumb - NON-BILLABLE CODE

  • Use T23.542A for initial encounter - BILLABLE CODE

  • Use T23.542D for subsequent encounter - BILLABLE CODE

  • Use T23.542S for sequela - BILLABLE CODE

  • T23.549 for Corrosion of first degree of unspecified multiple fingers (nail), including thumb - NON-BILLABLE CODE

  • Use T23.549A for initial encounter - BILLABLE CODE

  • Use T23.549D for subsequent encounter - BILLABLE CODE

  • Use T23.549S for sequela - BILLABLE CODE

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

  • T23.551 for Corrosion of first degree of right palm - NON-BILLABLE CODE

  • Use T23.551A for initial encounter - BILLABLE CODE

  • Use T23.551D for subsequent encounter - BILLABLE CODE

  • Use T23.551S for sequela - BILLABLE CODE

  • T23.552 for Corrosion of first degree of left palm - NON-BILLABLE CODE

  • Use T23.552A for initial encounter - BILLABLE CODE

  • Use T23.552D for subsequent encounter - BILLABLE CODE

  • Use T23.552S for sequela - BILLABLE CODE

  • T23.559 for Corrosion of first degree of unspecified palm - NON-BILLABLE CODE

  • Use T23.559A for initial encounter - BILLABLE CODE

  • Use T23.559D for subsequent encounter - BILLABLE CODE

  • Use T23.559S for sequela - BILLABLE CODE

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

  • T23.561 for Corrosion of first degree of back of right hand - NON-BILLABLE CODE

  • Use T23.561A for initial encounter - BILLABLE CODE

  • Use T23.561D for subsequent encounter - BILLABLE CODE

  • Use T23.561S for sequela - BILLABLE CODE

  • T23.562 for Corrosion of first degree of back of left hand - NON-BILLABLE CODE

  • Use T23.562A for initial encounter - BILLABLE CODE

  • Use T23.562D for subsequent encounter - BILLABLE CODE

  • Use T23.562S for sequela - BILLABLE CODE

  • T23.569 for Corrosion of first degree of back of unspecified hand - NON-BILLABLE CODE

  • Use T23.569A for initial encounter - BILLABLE CODE

  • Use T23.569D for subsequent encounter - BILLABLE CODE

  • Use T23.569S for sequela - BILLABLE CODE

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

  • T23.571 for Corrosion of first degree of right wrist - NON-BILLABLE CODE

  • Use T23.571A for initial encounter - BILLABLE CODE

  • Use T23.571D for subsequent encounter - BILLABLE CODE

  • Use T23.571S for sequela - BILLABLE CODE

  • T23.572 for Corrosion of first degree of left wrist - NON-BILLABLE CODE

  • Use T23.572A for initial encounter - BILLABLE CODE

  • Use T23.572D for subsequent encounter - BILLABLE CODE

  • Use T23.572S for sequela - BILLABLE CODE

  • T23.579 for Corrosion of first degree of unspecified wrist - NON-BILLABLE CODE

  • Use T23.579A for initial encounter - BILLABLE CODE

  • Use T23.579D for subsequent encounter - BILLABLE CODE

  • Use T23.579S for sequela - BILLABLE CODE

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

  • T23.591 for Corrosion of first degree of multiple sites of right wrist and hand - NON-BILLABLE CODE

  • Use T23.591A for initial encounter - BILLABLE CODE

  • Use T23.591D for subsequent encounter - BILLABLE CODE

  • Use T23.591S for sequela - BILLABLE CODE

  • T23.592 for Corrosion of first degree of multiple sites of left wrist and hand - NON-BILLABLE CODE

  • Use T23.592A for initial encounter - BILLABLE CODE

  • Use T23.592D for subsequent encounter - BILLABLE CODE

  • Use T23.592S for sequela - BILLABLE CODE

  • T23.599 for Corrosion of first degree of multiple sites of unspecified wrist and hand - NON-BILLABLE CODE

  • Use T23.599A for initial encounter - BILLABLE CODE

  • Use T23.599D for subsequent encounter - BILLABLE CODE

  • Use T23.599S for sequela - 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

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.