ICD-10-CM 2027 diagnosis code
T20Burn and corrosion of head, face, and neck
T20 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 T20
T20 is the ICD-10-CM diagnosis code for burn and corrosion of head, face, and neck. 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: T20.0 (neck), T20.1 (neck), T20.2 (neck), T20.3 (neck), T20.4 (neck), T20.5 (neck), T20.6 (neck) and T20.7 (neck).
The conditions in its Excludes2 note aren't part of T20, but may be coded alongside it if the patient has both: burn and corrosion of ear drum (T28.41, T28.91), burn and corrosion of eye and adnexa (T26.-) and burn and corrosion of mouth and pharynx (T28.0).
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 T20
- T20.0Burn of unspecified degree of head, face, and neck
- T20.00Burn of unspecified degree of head, face, and neck, unspecified site
- T20.01Burn of unspecified degree of ear [any part, except ear drum]
- T20.02Burn of unspecified degree of lip(s)
- T20.03Burn of unspecified degree of chin
- T20.04Burn of unspecified degree of nose (septum)
- T20.05Burn of unspecified degree of scalp [any part]
- T20.06Burn of unspecified degree of forehead and cheek
- T20.07Burn of unspecified degree of neck
- T20.09Burn of unspecified degree of multiple sites of head, face, and neck
- T20.1Burn of first degree of head, face, and neck
- T20.10Burn of first degree of head, face, and neck, unspecified site
- T20.11Burn of first degree of ear [any part, except ear drum]
- T20.12Burn of first degree of lip(s)
- T20.13Burn of first degree of chin
- T20.14Burn of first degree of nose (septum)
- T20.15Burn of first degree of scalp [any part]
- T20.16Burn of first degree of forehead and cheek
- T20.17Burn of first degree of neck
- T20.19Burn of first degree of multiple sites of head, face, and neck
- T20.2Burn of second degree of head, face, and neck
- T20.20Burn of second degree of head, face, and neck, unspecified site
- T20.21Burn of second degree of ear [any part, except ear drum]
- T20.22Burn of second degree of lip(s)
- T20.23Burn of second degree of chin
- T20.24Burn of second degree of nose (septum)
- T20.25Burn of second degree of scalp [any part]
- T20.26Burn of second degree of forehead and cheek
- T20.27Burn of second degree of neck
- T20.29Burn of second degree of multiple sites of head, face, and neck
- T20.3Burn of third degree of head, face, and neck
- T20.30Burn of third degree of head, face, and neck, unspecified site
- T20.31Burn of third degree of ear [any part, except ear drum]
- T20.32Burn of third degree of lip(s)
- T20.33Burn of third degree of chin
- T20.34Burn of third degree of nose (septum)
- T20.35Burn of third degree of scalp [any part]
- T20.36Burn of third degree of forehead and cheek
- T20.37Burn of third degree of neck
- T20.39Burn of third degree of multiple sites of head, face, and neck
- T20.4Corrosion of unspecified degree of head, face, and neck
- T20.40Corrosion of unspecified degree of head, face, and neck, unspecified site
- T20.41Corrosion of unspecified degree of ear [any part, except ear drum]
- T20.42Corrosion of unspecified degree of lip(s)
- T20.43Corrosion of unspecified degree of chin
- T20.44Corrosion of unspecified degree of nose (septum)
- T20.45Corrosion of unspecified degree of scalp [any part]
- T20.46Corrosion of unspecified degree of forehead and cheek
- T20.47Corrosion of unspecified degree of neck
- T20.49Corrosion of unspecified degree of multiple sites of head, face, and neck
- T20.5Corrosion of first degree of head, face, and neck
- T20.50Corrosion of first degree of head, face, and neck, unspecified site
- T20.51Corrosion of first degree of ear [any part, except ear drum]
- T20.52Corrosion of first degree of lip(s)
- T20.53Corrosion of first degree of chin
- T20.54Corrosion of first degree of nose (septum)
- T20.55Corrosion of first degree of scalp [any part]
- T20.56Corrosion of first degree of forehead and cheek
- T20.57Corrosion of first degree of neck
- T20.59Corrosion of first degree of multiple sites of head, face, and neck
- T20.6Corrosion of second degree of head, face, and neck
- T20.60Corrosion of second degree of head, face, and neck, unspecified site
- T20.61Corrosion of second degree of ear [any part, except ear drum]
- T20.62Corrosion of second degree of lip(s)
- T20.63Corrosion of second degree of chin
- T20.64Corrosion of second degree of nose (septum)
- T20.65Corrosion of second degree of scalp [any part]
- T20.66Corrosion of second degree of forehead and cheek
- T20.67Corrosion of second degree of neck
- T20.69Corrosion of second degree of multiple sites of head, face, and neck
- T20.7Corrosion of third degree of head, face, and neck
- T20.70Corrosion of third degree of head, face, and neck, unspecified site
- T20.71Corrosion of third degree of ear [any part, except ear drum]
- T20.72Corrosion of third degree of lip(s)
- T20.73Corrosion of third degree of chin
- T20.74Corrosion of third degree of nose (septum)
- T20.75Corrosion of third degree of scalp [any part]
- T20.76Corrosion of third degree of forehead and cheek
- T20.77Corrosion of third degree of neck
- T20.79Corrosion of third degree of multiple sites of head, face, and neck
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to T20.
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.
Codes whose notes reference T20
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 T20
Is T20 billable?
- No. T20 is a header code. Report one of its more specific subcodes instead.