ICD-10-CM 2027 diagnosis code

T27Burn and corrosion of respiratory tract

Not billable — use a more specific code

T27 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About T27

T27 is the ICD-10-CM diagnosis code for burn and corrosion of respiratory tract. It belongs to block T26-T28 (burns and corrosions confined to eye and internal organs) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: T27.0 (trachea), T27.1 (lung), T27.2 (tract), T27.3 (unspecified), T27.4 (trachea), T27.5 (lung), T27.6 (tract) and T27.7 (unspecified).

Use an additional code for: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98) and external cause code to identify place (Y92).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under T27

Coding notes

Use additional codeAdd a secondary code to fully describe the condition

external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)
external cause code to identify place (Y92)

Notes that apply from higher levels

Instructions written at a parent level also apply to T27.

Broader instructions also apply from Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about T27

Is T27 billable?: No. T27 is a header code. Report one of its more specific subcodes instead.