T25.13 – Burn of first degree of toe(s) (nail)

ICD-10-CM 2027 diagnosis code · Burns and corrosions of external body surface, specified by site

Non-billable header

ICD-10-CM code T25.13

Code: T25.13 (claims format: T2513)
Description: Burn of first degree of toe(s) (nail)
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block: T20-T25 Burns and corrosions of external body surface, specified by site
Parent codes: T25 › T25.1

Billable codes under T25.13

T25.13 is a header code and cannot be used on claims. Choose the most specific code:

T25.131 – Burn of first degree of right toe(s) (nail)Header (more codes below)
T25.132 – Burn of first degree of left toe(s) (nail)Header (more codes below)
T25.139 – Burn of first degree of unspecified toe(s) (nail)Header (more codes below)

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care (use placeholder X for empty positions).

Character	Meaning
`A`	initial encounter
`D`	subsequent encounter
`S`	sequela

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

T25 – Burn and corrosion of ankle and foot

7th character note:

The appropriate 7th character is to be added to each code from category T25

T25.1 – Burn of first degree of ankle and foot

Use additional code:

external cause code to identify the source, place and intent of the burn (X00-X19, X75-X77, X96-X98, Y92)

Block T20-T25

Includes:

burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]

Use additional code:

code from category T31 or T32 to identify extent of body surface involved

Related codes in T25.1

Frequently asked questions

What is ICD-10 code T25.13?

T25.13 is the ICD-10-CM code for burn of first degree of toe(s) (nail), in the block T20-T25 (Burns and corrosions of external body surface, specified by site).

Is T25.13 a billable code?

No. T25.13 is a header code with more specific child codes; report one of the billable codes listed above.

What category does T25.13 belong to?

It belongs to category T25 – Burn and corrosion of ankle and foot.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.