ICD-10 Code T23.449A

Corrosion of unspecified degree of unspecified multiple fingers (nail), including thumb, initial encounter

Version 2019 Billable Code
ICD-10:T23.449A
Short Description:Corros unsp degree of unsp mult fngr (nail), inc thumb, init
Long Description:Corrosion of unspecified degree of unspecified multiple fingers (nail), including thumb, initial encounter

Valid for Submission

ICD-10 T23.449A is a billable code used to specify a medical diagnosis of corrosion of unspecified degree of unspecified multiple fingers (nail), including thumb, initial encounter. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Burns and corrosions of external body surface, specified by site (T20-T25)
      • Burn and corrosion of wrist and hand (T23)

Information for Medical Professionals

Convert T23.449A to ICD-9

The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:

  • 944.04 - Burn NOS finger w thumb (Approximate Flag)

Information for Patients


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

  • Burns (Medical Encyclopedia)
  • Chemical burn or reaction (Medical Encyclopedia)
  • Minor burns - aftercare (Medical Encyclopedia)
  • Skin graft (Medical Encyclopedia)

[Read More]

ICD-10 Footnotes

General Equivalence Map Definitions
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.