T21
Non-billableBurn and corrosion of trunk
Burn and corrosion of trunk
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- burns and corrosions of first degree [erythema]
- burns and corrosions of second degree [blisters][epidermal loss]
- burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
- burns and corrosion of hip region
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
7th Character Definitions
- A - initial encounter
- D - subsequent encounter
- S - sequela
Child Codes (8)
T21.0Burn of unspecified degree of trunk
T21.1Burn of first degree of trunk
T21.2Burn of second degree of trunk
T21.3Burn of third degree of trunk
T21.4Corrosion of unspecified degree of trunk
T21.5Corrosion of first degree of trunk
T21.6Corrosion of second degree of trunk
T21.7Corrosion of third degree of trunk
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(2)
Frequently Asked Questions
What is the ICD-10 code for burn and corrosion of trunk?
The ICD-10-CM code for burn and corrosion of trunk is T21. The full clinical description is "Burn and corrosion of trunk". T21 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code T21 mean?
ICD-10-CM code T21 represents “Burn and corrosion of trunk”. It is classified under Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes and is a non-billable header code. Use a more specific child code for billing purposes.
Is T21 a billable code?
No, T21 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 8 child codes under T21.
What chapter is T21 in?
T21 is in Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (codes S00-T88).
What codes cannot be used with T21?
T21 has Excludes1 notes indicating codes that cannot be used together with it, including: birth trauma (P10-P15); obstetric trauma (O70-O71).
What are the subcategories under T21?
T21 has 8 child codes, including: T21.0 (Burn of unspecified degree of trunk), T21.1 (Burn of first degree of trunk), T21.2 (Burn of second degree of trunk), T21.3 (Burn of third degree of trunk), and 4 more.
Are additional codes required with T21?
Yes, when using T21, also report: any retained foreign body, if applicable (Z18.-); code from category T31 or T32 to identify extent of body surface involved.
What are the UMLS CUIs for T21?
T21 is linked to 2 UMLS Concept Unique Identifiers: C2919011, C4290397. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does T21 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like burn and corrosion of trunk affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of T21?
T21 maps to the ICD-11 code: ND92.Z (Burn of trunk except perineum or genitalia, depth of burn unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.