T34.529D — Frostbite with tissue necrosis of unspecified hand, subsequent encounter
Is T34.529D billable?
Yes, but T34.529D is an unspecified code. T34.529D is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T34.529D is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting T34.529D — the more specific alternatives are listed below.
T34.529D at a glance
| Code | T34.529D |
|---|---|
| Description | Frostbite with tissue necrosis of unspecified hand, subsequent encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "D" | subsequent encounter |
What does the 7th character "D" mean in T34.529D?
In T34.529D, the 7th character D means subsequent encounter. The 7th character is required for T34.529D to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T34.529D group to?
T34.529D sits in MDC 23 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 949Aftercare with CC/MCCmedical
- 950Aftercare without CC/MCCmedical
How is T34.529D listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T34.52, the nearest indexed parent of T34.529D. Use them to find the family, then select the specific code.
- Frostbite › hand › with tissue necrosis (superficial)
Use additional code — inherited from Chapter 19
Report an additional code alongside T34.529D to fully describe the condition. T34.529D 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 T34.529D, but a patient may have both at the same time. When documentation supports it, T34.529D and the excluded code may both be reported.
Excludes2 — not included here — inherited from T33-T34
The conditions below are not part of T34.529D, but a patient may have both at the same time. When documentation supports it, T34.529D and the excluded code may both be reported.
Excludes2 — not included here — inherited from T34.52
The conditions below are not part of T34.529D, but a patient may have both at the same time. When documentation supports it, T34.529D and the excluded code may both be reported.
- frostbite with tissue necrosis of finger(s) (T34.53-)
How long has T34.529D existed?
T34.529D 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.