T33.1 — Superficial frostbite of neck
T33.1 is a non-billable header ICD-10-CM code for superficial frostbite of neck. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T33
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T33.1 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How T33.1 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to T33.1.
- Frostbite›neck
Code to one of these instead T33.1
3 child codes. Green means billable.
Related codes at this level
Codes that share T33. If T33.1 is not quite right, the correct code is usually one of these.
- T33.0Superficial frostbite of head
- T33.2Superficial frostbite of thorax
- T33.3Superficial frostbite of abdominal wall, lower back and pelvis
- T33.4Superficial frostbite of arm
- T33.5Superficial frostbite of wrist, hand, and fingers
- T33.6Superficial frostbite of hip and thigh
- T33.7Superficial frostbite of knee and lower leg
- T33.8Superficial frostbite of ankle, foot, and toe(s)
- T33.9Superficial frostbite of other and unspecified sites
Questions about T33.1
- Is T33.1 a billable ICD-10-CM code?
- No. T33.1 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T33.1 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Frostbite (T33-T34).