2027 ICD-10-CM Diagnosis Code T30Burn and corrosion, body region unspecified

ICD-10-CM Codes›S00–T88›T30-T32›T30

ICD-10-CM T30
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

T30 is a non-billable ICD-10-CM category code for burn and corrosion, body region unspecified, so it cannot be submitted on claims. Use a more specific code from this category instead, such as T30.0 and T30.4.

Code Identity

ICD-10-CM Code
T30
Billable Status
No — Non-Billable Category
Code Describes
Burn and corrosion, body region unspecified
Short Description
Burn and corrosion, body region unspecified
Same as the full description in the CMS dataset.
Chapter
T30-T32
Burns and corrosions of multiple and unspecified body regions

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionT30-T32Burns and corrosions of multiple and unspecified body regions
CategoryT30Burn and corrosion, body region unspecified
This CodeT30Burn and corrosion, body region unspecified

Specific Coding for Burn and corrosion, body region unspecifiedOverview

Non-specific codes like T30 require more characters. Use one of these billable codes instead:

  • Use T30.0 for Burn of unspecified body region, unspecified degree

  • Use T30.4 for Corrosion of unspecified body region, unspecified degree

Coding GuidelinesGuidance

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.

When coding burns, assign separate codes for each burn site. Category T30, Burn and corrosion, body region unspecified is extremely vague and should rarely be used.

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to T30: its own notes plus those printed at block T20-T32 and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Block T20-T32 applies to 2,584 codes
  • burns (thermal) from electrical heating appliances
  • burns (thermal) from electricity
  • burns (thermal) from flame
  • burns (thermal) from friction
  • burns (thermal) from hot air and hot gases
  • burns (thermal) from hot objects
  • burns (thermal) from lightning
  • burns (thermal) from radiation
  • chemical burn [corrosion] (external) (internal)
  • scalds

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block T20-T32 applies to 2,584 codes
  • erythema [dermatitis] ab igne (L59.0)
  • radiation-related disorders of the skin and subcutaneous tissue (L55-L59)
  • sunburn (L55.-)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • 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
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

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.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About T30Overview

What is the ICD-10 code for burn and corrosion, body region unspecified?

T30 is the ICD-10-CM category for burn and corrosion, body region unspecified, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is T30 (Burn and corrosion, body region unspecified) a billable code?

No. This is a category header that groups the codes for burn and corrosion, body region unspecified, and headers cannot be submitted on claims. Claims for burn and corrosion, body region unspecified need a more specific code from this category, such as T30.0 and T30.4.