ICD-10-CM 2027 diagnosis code
T24Burn and corrosion of lower limb, except ankle and foot
T24 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 T24
T24 is the ICD-10-CM diagnosis code for burn and corrosion of lower limb, except ankle and foot. It belongs to block T20-T25 (burns and corrosions of external body surface, specified by site) 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: T24.0 (foot), T24.1 (foot), T24.2 (foot), T24.3 (foot), T24.4 (foot), T24.5 (foot), T24.6 (foot) and T24.7 (foot).
The conditions in its Excludes2 note aren't part of T24, but may be coded alongside it if the patient has both: burn and corrosion of ankle and foot (T25.-) and burn and corrosion of hip region (T21.-).
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 T24
- T24.0Burn of unspecified degree of lower limb, except ankle and foot
- T24.00Burn of unspecified degree of unspecified site of lower limb, except ankle and foot
- T24.01Burn of unspecified degree of thigh
- T24.02Burn of unspecified degree of knee
- T24.03Burn of unspecified degree of lower leg
- T24.09Burn of unspecified degree of multiple sites of lower limb, except ankle and foot
- T24.1Burn of first degree of lower limb, except ankle and foot
- T24.2Burn of second degree of lower limb, except ankle and foot
- T24.3Burn of third degree of lower limb, except ankle and foot
- T24.4Corrosion of unspecified degree of lower limb, except ankle and foot
- T24.40Corrosion of unspecified degree of unspecified site of lower limb, except ankle and foot
- T24.401Corrosion of unspecified degree of unspecified site of right lower limb, except ankle and foot
- T24.402Corrosion of unspecified degree of unspecified site of left lower limb, except ankle and foot
- T24.409Corrosion of unspecified degree of unspecified site of unspecified lower limb, except ankle and foot
- T24.41Corrosion of unspecified degree of thigh
- T24.42Corrosion of unspecified degree of knee
- T24.43Corrosion of unspecified degree of lower leg
- T24.49Corrosion of unspecified degree of multiple sites of lower limb, except ankle and foot
- T24.491Corrosion of unspecified degree of multiple sites of right lower limb, except ankle and foot
- T24.492Corrosion of unspecified degree of multiple sites of left lower limb, except ankle and foot
- T24.499Corrosion of unspecified degree of multiple sites of unspecified lower limb, except ankle and foot
- T24.40Corrosion of unspecified degree of unspecified site of lower limb, except ankle and foot
- T24.5Corrosion of first degree of lower limb, except ankle and foot
- T24.6Corrosion of second degree of lower limb, except ankle and foot
- T24.60Corrosion of second degree of unspecified site of lower limb, except ankle and foot
- T24.61Corrosion of second degree of thigh
- T24.62Corrosion of second degree of knee
- T24.63Corrosion of second degree of lower leg
- T24.69Corrosion of second degree of multiple sites of lower limb, except ankle and foot
- T24.7Corrosion of third degree of lower limb, except ankle and foot
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to T24.
Broader instructions also apply from T20-T25 Burns and corrosions of external body surface, specified by site and 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 T24
Is T24 billable?
- No. T24 is a header code. Report one of its more specific subcodes instead.