T23.02 – Burn of unspecified degree of single finger (nail) except thumb
ICD-10-CM 2027 diagnosis code · Burns and corrosions of external body surface, specified by site
- Code
T23.02(claims format:T2302)- Description
- Burn of unspecified degree of single finger (nail) except thumb
- Short description
- Burn of unsp degree of single finger (nail) except thumb
- 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
- T23 › T23.0
Billable codes under T23.02
T23.02 is a header code and cannot be used on claims. Choose the most specific code:
- T23.021 – Burn of unspecified degree of single right finger (nail) except thumbHeader (more codes below)
- T23.022 – Burn of unspecified degree of single left finger (nail) except thumbHeader (more codes below)
- T23.029 – Burn of unspecified degree of unspecified single finger (nail) except thumbHeader (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.
T23 – Burn and corrosion of wrist and hand
- The appropriate 7th character is to be added to each code from category T23
T23.0 – Burn of unspecified degree of wrist and hand
Block T20-T25
- 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]
Related codes in T23.0
- T23.00 – Burn of unspecified degree of hand, unspecified siteHeader
- T23.01 – Burn of unspecified degree of thumb (nail)Header
- T23.03 – Burn of unspecified degree of multiple fingers (nail), not including thumbHeader
- T23.04 – Burn of unspecified degree of multiple fingers (nail), including thumbHeader
- T23.05 – Burn of unspecified degree of palmHeader
- T23.06 – Burn of unspecified degree of back of handHeader
- T23.07 – Burn of unspecified degree of wristHeader
- T23.09 – Burn of unspecified degree of multiple sites of wrist and handHeader
Frequently asked questions
What is ICD-10 code T23.02?
T23.02 is the ICD-10-CM code for burn of unspecified degree of single finger (nail) except thumb, in the block T20-T25 (Burns and corrosions of external body surface, specified by site).
Is T23.02 a billable code?
No. T23.02 is a header code with more specific child codes; report one of the billable codes listed above.
What category does T23.02 belong to?
It belongs to category T23 – Burn and corrosion of wrist and hand.
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.