T21 ICD-10-CM Code: Burn and corrosion of trunk
T21 isn’t billable on its own. Choose one of the 216 billable codes beneath it, the one the documentation supports.
Official description
T21Burn and corrosion of trunk
ICD-10-CM diagnosis code · United States clinical modification
Billable codes under T21
T21 holds 216 billable codes. Open the group that matches the documentation to choose one.
T21.0Burn of unspecified degree of trunk (27 billable codes)T21.1Burn of first degree of trunk (27 billable codes)T21.2Burn of second degree of trunk (27 billable codes)T21.3Burn of third degree of trunk (27 billable codes)T21.4Corrosion of unspecified degree of trunk (27 billable codes)T21.5Corrosion of first degree of trunk (27 billable codes)T21.6Corrosion of second degree of trunk (27 billable codes)T21.7Corrosion of third degree of trunk (27 billable codes)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
Notes 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 216 billable codes beneath it 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).