ICD-10-CM 2027 diagnosis code
T31Burns classified according to extent of body surface involved
Not billable — use a more specific code
T31 is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.Short description: Burns classified accord extent body involv
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 T31
T31 is the ICD-10-CM diagnosis code for burns classified according to extent of body surface involved. It belongs to block T30-T32 (burns and corrosions of multiple and unspecified body regions) 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 10 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: T31.0 (surface), T31.1 (surface), T31.2 (surface), T31.3 (surface), T31.4 (surface), T31.5 (surface), T31.6 (surface), T31.7 (surface) and 2 more.
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 T31
- T31.0Burns involving less than 10% of body surfaceBillable
- T31.1Burns involving 10-19% of body surface
- T31.2Burns involving 20-29% of body surface
- T31.3Burns involving 30-39% of body surface
- T31.30Burns involving 30-39% of body surface with 0% to 9% third degree burnsBillable
- T31.31Burns involving 30-39% of body surface with 10-19% third degree burnsBillable
- T31.32Burns involving 30-39% of body surface with 20-29% third degree burnsBillable
- T31.33Burns involving 30-39% of body surface with 30-39% third degree burnsBillable
- T31.4Burns involving 40-49% of body surface
- T31.40Burns involving 40-49% of body surface with 0% to 9% third degree burnsBillable
- T31.41Burns involving 40-49% of body surface with 10-19% third degree burnsBillable
- T31.42Burns involving 40-49% of body surface with 20-29% third degree burnsBillable
- T31.43Burns involving 40-49% of body surface with 30-39% third degree burnsBillable
- T31.44Burns involving 40-49% of body surface with 40-49% third degree burnsBillable
- T31.5Burns involving 50-59% of body surface
- T31.50Burns involving 50-59% of body surface with 0% to 9% third degree burnsBillable
- T31.51Burns involving 50-59% of body surface with 10-19% third degree burnsBillable
- T31.52Burns involving 50-59% of body surface with 20-29% third degree burnsBillable
- T31.53Burns involving 50-59% of body surface with 30-39% third degree burnsBillable
- T31.54Burns involving 50-59% of body surface with 40-49% third degree burnsBillable
- T31.55Burns involving 50-59% of body surface with 50-59% third degree burnsBillable
- T31.6Burns involving 60-69% of body surface
- T31.60Burns involving 60-69% of body surface with 0% to 9% third degree burnsBillable
- T31.61Burns involving 60-69% of body surface with 10-19% third degree burnsBillable
- T31.62Burns involving 60-69% of body surface with 20-29% third degree burnsBillable
- T31.63Burns involving 60-69% of body surface with 30-39% third degree burnsBillable
- T31.64Burns involving 60-69% of body surface with 40-49% third degree burnsBillable
- T31.65Burns involving 60-69% of body surface with 50-59% third degree burnsBillable
- T31.66Burns involving 60-69% of body surface with 60-69% third degree burnsBillable
- T31.7Burns involving 70-79% of body surface
- T31.70Burns involving 70-79% of body surface with 0% to 9% third degree burnsBillable
- T31.71Burns involving 70-79% of body surface with 10-19% third degree burnsBillable
- T31.72Burns involving 70-79% of body surface with 20-29% third degree burnsBillable
- T31.73Burns involving 70-79% of body surface with 30-39% third degree burnsBillable
- T31.74Burns involving 70-79% of body surface with 40-49% third degree burnsBillable
- T31.75Burns involving 70-79% of body surface with 50-59% third degree burnsBillable
- T31.76Burns involving 70-79% of body surface with 60-69% third degree burnsBillable
- T31.77Burns involving 70-79% of body surface with 70-79% third degree burnsBillable
- T31.8Burns involving 80-89% of body surface
- T31.80Burns involving 80-89% of body surface with 0% to 9% third degree burnsBillable
- T31.81Burns involving 80-89% of body surface with 10-19% third degree burnsBillable
- T31.82Burns involving 80-89% of body surface with 20-29% third degree burnsBillable
- T31.83Burns involving 80-89% of body surface with 30-39% third degree burnsBillable
- T31.84Burns involving 80-89% of body surface with 40-49% third degree burnsBillable
- T31.85Burns involving 80-89% of body surface with 50-59% third degree burnsBillable
- T31.86Burns involving 80-89% of body surface with 60-69% third degree burnsBillable
- T31.87Burns involving 80-89% of body surface with 70-79% third degree burnsBillable
- T31.88Burns involving 80-89% of body surface with 80-89% third degree burnsBillable
- T31.9Burns involving 90% or more of body surface
- T31.90Burns involving 90% or more of body surface with 0% to 9% third degree burnsBillable
- T31.91Burns involving 90% or more of body surface with 10-19% third degree burnsBillable
- T31.92Burns involving 90% or more of body surface with 20-29% third degree burnsBillable
- T31.93Burns involving 90% or more of body surface with 30-39% third degree burnsBillable
- T31.94Burns involving 90% or more of body surface with 40-49% third degree burnsBillable
- T31.95Burns involving 90% or more of body surface with 50-59% third degree burnsBillable
- T31.96Burns involving 90% or more of body surface with 60-69% third degree burnsBillable
- T31.97Burns involving 90% or more of body surface with 70-79% third degree burnsBillable
- T31.98Burns involving 90% or more of body surface with 80-89% third degree burnsBillable
- T31.99Burns involving 90% or more of body surface with 90% or more third degree burnsBillable
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to T31.
Broader instructions also apply from Chapter 19: Injury, poisoning and certain other consequences of external causes.
Codes whose notes reference T31
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 T31
Is T31 billable?
- No. T31 is a header code. Report one of its more specific subcodes instead.