T27.4XXA ICD-10-CM Code: Corrosion of larynx and trachea, initial encounter
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
T27.4XXACorrosion of larynx and trachea, initial encounter
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where T27.4XXA sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Burns and corrosions confined to eye and internal organs (T26-T28)
- 3
Category T27
Burn and corrosion of respiratory tract
- 4
Subcategory T27.4
Corrosion of larynx and trachea
- 5
Code T27.4XXA
Corrosion of larynx and trachea, initial encounter
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for T27.4XXA.
Code first
No “code first” instruction is listed for T27.4XXA.
Use additional code
No “use additional code” instruction is listed for T27.4XXA.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for T27.4XXA.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for T27.4XXA.
Transparency
Source and release
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.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code T27.4XXA mean?
T27.4XXA is the FY 2027 U.S. ICD-10-CM code for “Corrosion of larynx and trachea, initial encounter.”
Is T27.4XXA a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, T27.4XXA has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is T27.4XXA located in ICD-10-CM?
T27.4XXA is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Burns and corrosions confined to eye and internal organs (T26-T28) (T26–T28), under category T27, Burn and corrosion of respiratory tract and subcategory T27.4, Corrosion of larynx and trachea.
What coding notes are listed for T27.4XXA?
No inclusion terms are listed for T27.4XXA in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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