T33.1 – Superficial frostbite of neck
ICD-10-CM 2027 diagnosis code · Frostbite
- Code
T33.1(claims format:T331)- Description
- Superficial frostbite of neck
- 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
- T33-T34 Frostbite
- Parent codes
- T33
Billable codes under T33.1
T33.1 is a header code and cannot be used on claims. Choose the most specific code:
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.
T33 – Superficial frostbite
- frostbite with partial thickness skin loss
- The appropriate 7th character is to be added to each code from category T33
Block T33-T34
Index terms for T33.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in T33
- T33.0 – Superficial frostbite of headHeader
- T33.2 – Superficial frostbite of thoraxHeader
- T33.3 – Superficial frostbite of abdominal wall, lower back and pelvisHeader
- T33.4 – Superficial frostbite of armHeader
- T33.5 – Superficial frostbite of wrist, hand, and fingersHeader
- T33.6 – Superficial frostbite of hip and thighHeader
- T33.7 – Superficial frostbite of knee and lower legHeader
- T33.8 – Superficial frostbite of ankle, foot, and toe(s)Header
- T33.9 – Superficial frostbite of other and unspecified sitesHeader
Frequently asked questions
What is ICD-10 code T33.1?
T33.1 is the ICD-10-CM code for superficial frostbite of neck, in the block T33-T34 (Frostbite).
Is T33.1 a billable code?
No. T33.1 is a header code with more specific child codes; report one of the billable codes listed above.
What category does T33.1 belong to?
It belongs to category T33 – Superficial frostbite.
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.