T31
Burns classified according to extent of body surface involved
Choose the additional character
T31 needs more characters to be billable. Pick the specific code below.
- T31.0Burns involving less than 10% of body surfaceBillable
- T31.1Burns involving 10-19% of body surfaceMore levels
- T31.2Burns involving 20-29% of body surfaceMore levels
- T31.3Burns involving 30-39% of body surfaceMore levels
- T31.4Burns involving 40-49% of body surfaceMore levels
- T31.5Burns involving 50-59% of body surfaceMore levels
- T31.6Burns involving 60-69% of body surfaceMore levels
- T31.7Burns involving 70-79% of body surfaceMore levels
- T31.8Burns involving 80-89% of body surfaceMore levels
- T31.9Burns involving 90% or more of body surfaceMore 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
This category is to be used as the primary code only when the site of the burn is unspecified. It should be used as a supplementary code with categories T20-T25 when the site is specified.
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 T31
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 T31
Sections whose FY 2026 text names T31, its T31 category, or a range containing it — the chapter guidance above is the authoritative source.