T21 ICD-10-CM Code: Burn and corrosion of trunk
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Official description
T21Burn and corrosion of trunk
ICD-10-CM diagnosis code · United States clinical modification
Where T21 sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Burns and corrosions of external body surface, specified by site (T20-T25)
- 3
Category T21
Burn and corrosion of trunk
- 4
Code T21
Burn and corrosion of trunk
Codes under T21
T21 is a non-billable category. Choose the child code that best matches the documented diagnosis.
T21.0Burn of unspecified degree of trunkT21.1Burn of first degree of trunkT21.2Burn of second degree of trunkT21.3Burn of third degree of trunkT21.4Corrosion of unspecified degree of trunkT21.5Corrosion of first degree of trunkT21.6Corrosion of second degree of trunkT21.7Corrosion of third degree of trunkNotes for this code
Inclusion terms
No inclusion terms are listed for T21.
Code first
No “code first” instruction is listed for T21.
Use additional code
No “use additional code” instruction is listed for T21.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for T21.
Excludes2
Conditions not included here that may be reported separately when present.
- burns and corrosion of axilla (T22.- with fifth character 4)
- burns and corrosion of scapular region (T22.- with fifth character 6)
- burns and corrosion of shoulder (T22.- with fifth character 5)
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code T21 mean?
T21 is the FY 2027 U.S. ICD-10-CM code for “Burn and corrosion of trunk.”
Is T21 a billable or specific ICD-10-CM code?
No. T21 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is T21 located in ICD-10-CM?
T21 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Burns and corrosions of external body surface, specified by site (T20-T25) (T20–T25), under category T21, Burn and corrosion of trunk.
What coding notes are listed for T21?
No inclusion terms are listed for T21 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: burns and corrosion of axilla (T22.- with fifth character 4); burns and corrosion of scapular region (T22.- with fifth character 6); burns and corrosion of shoulder (T22.- with fifth character 5).