T27
Burn and corrosion of respiratory tract
Choose the additional character
T27 needs more characters to be billable. Pick the specific code below.
- T27.0Burn of larynx and tracheaMore levels
- T27.1Burn involving larynx and trachea with lungMore levels
- T27.2Burn of other parts of respiratory tractMore levels
- T27.3Burn of respiratory tract, part unspecifiedMore levels
- T27.4Corrosion of larynx and tracheaMore levels
- T27.5Corrosion involving larynx and trachea with lungMore levels
- T27.6Corrosion of other parts of respiratory tractMore levels
- T27.7Corrosion of respiratory tract, part unspecifiedMore levels
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
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)
The appropriate 7th character is to be added to each code from category T27
| Character | Meaning |
|---|---|
| A | initial encounter |
| D | subsequent encounter |
| S | sequela |
code to identify any retained foreign body, if applicable (Z18.-)
Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes. (T07-T88) Injury, poisoning and certain other consequences of external causes (T07-T88) (T20-T32) Burns and corrosions (T20-T32) Includes: burns (thermal) from electrical heating appliances burns (thermal) from electricity burns (thermal) from flame burns (thermal) from friction burns (thermal) from hot air and hot gases burns (thermal) from hot objects burns (thermal) from lightning burns (thermal) from radiation chemical burn [corrosion] (external) (internal) scalds Excludes2: erythema [dermatitis] ab igne (L59.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59) sunburn (L55.-)
Official Guidelines for T27
FY 2026 ›Subsections
- I.C.19.aApplication of 7th Characters in Chapter 19
- I.C.19.bCoding of Injuries
- I.C.19.cCoding of Traumatic Fractures
- I.C.19.dCoding of Burns and Corrosions
- I.C.19.eAdverse Effects, Poisoning, Underdosing and Toxic Effects
- I.C.19.fAdult and child abuse, neglect and other maltreatment
- I.C.19.gComplications of care
Sections that reference T27
Sections whose FY 2026 text names T27, its T27 category, or a range containing it — the chapter guidance above is the authoritative source.