T27 – Burn and corrosion of respiratory tract

ICD-10-CM 2027 diagnosis code · Burns and corrosions confined to eye and internal organs

Non-billable header

ICD-10-CM code T27

Code: T27 (claims format: T27)
Description: Burn and corrosion of respiratory tract
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block: T26-T28 Burns and corrosions confined to eye and internal organs

Billable codes under T27

T27 is a header code and cannot be used on claims. Choose the most specific code:

T27.0 – Burn of larynx and tracheaHeader (more codes below)
T27.1 – Burn involving larynx and trachea with lungHeader (more codes below)
T27.2 – Burn of other parts of respiratory tractHeader (more codes below)
T27.3 – Burn of respiratory tract, part unspecifiedHeader (more codes below)
T27.4 – Corrosion of larynx and tracheaHeader (more codes below)
T27.5 – Corrosion involving larynx and trachea with lungHeader (more codes below)
T27.6 – Corrosion of other parts of respiratory tractHeader (more codes below)
T27.7 – Corrosion of respiratory tract, part unspecifiedHeader (more codes below)

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes for T27

Use additional code:

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)

7th character note:

The appropriate 7th character is to be added to each code from category T27

Frequently asked questions

What is ICD-10 code T27?

T27 is the ICD-10-CM code for burn and corrosion of respiratory tract, in the block T26-T28 (Burns and corrosions confined to eye and internal organs).

Is T27 a billable code?

No. T27 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.