T34.99 — Frostbite with tissue necrosis of other sites
Is T34.99 billable?
No — T34.99 is a non-billable header code. T34.99 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath T34.99.
T34.99 at a glance
| Code | T34.99 |
|---|---|
| Description | Frostbite with tissue necrosis of other sites |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is T34.99 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to T34.99. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Frostbite › leg › with tissue necrosis (superficial)
- Frostbite › specified site NEC › with tissue necrosis (superficial)
- Frostbite › trunk › with tissue necrosis (superficial)
- Frostbite › limb › lower › with tissue necrosis (superficial)
Inclusion terms
Alternative wording in documentation that is classified to T34.99.
- Frostbite with tissue necrosis of leg NOS
- Frostbite with tissue necrosis of trunk NOS
Use additional code — inherited from Chapter 19
Report an additional code alongside T34.99 to fully describe the condition. T34.99 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T34.99, but a patient may have both at the same time. When documentation supports it, T34.99 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T33-T34
The conditions below are not part of T34.99, but a patient may have both at the same time. When documentation supports it, T34.99 and the excluded code may both be reported.
What codes fall under T34.99? (3)
How long has T34.99 existed?
T34.99 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.