T21.10XA — Burn of first degree of trunk, unspecified site, initial encounter
Is T21.10XA billable?
Yes, but T21.10XA is an unspecified code. T21.10XA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, T21.10XA 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 T21.10XA — the more specific alternatives are listed below.
More specific alternatives
- T21.11XABurn of first degree of chest wall, initial encounter
- T21.12XABurn of first degree of abdominal wall, initial encounter
- T21.13XABurn of first degree of upper back, initial encounter
- T21.14XABurn of first degree of lower back, initial encounter
- T21.15XABurn of first degree of buttock, initial encounter
- T21.16XABurn of first degree of male genital region, initial encounter
- T21.17XABurn of first degree of female genital region, initial encounter
- T21.19XABurn of first degree of other site of trunk, initial encounter
T21.10XA at a glance
| Code | T21.10XA |
|---|---|
| Description | Burn of first degree of trunk, unspecified site, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in T21.10XA?
In T21.10XA, the 7th character A means initial encounter. The 7th character is required for T21.10XA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does T21.10XA group to?
T21.10XA sits in MDC 22 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 935Non-Extensive Burnsmedical
How is T21.10XA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under T21.10, the nearest indexed parent of T21.10XA. Use them to find the family, then select the specific code.
- Burn › trunk › first degree (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal)
Use additional code — inherited from Chapter 19
Report an additional code alongside T21.10XA to fully describe the condition. T21.10XA is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T20-T25
Report an additional code alongside T21.10XA to fully describe the condition. T21.10XA is sequenced first.
Use additional code — inherited from T21.1
Report an additional code alongside T21.10XA to fully describe the condition. T21.10XA is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T21.10XA, but a patient may have both at the same time. When documentation supports it, T21.10XA and the excluded code may both be reported.
Excludes2 — not included here — inherited from T21
The conditions below are not part of T21.10XA, but a patient may have both at the same time. When documentation supports it, T21.10XA and the excluded code may both be reported.
How long has T21.10XA existed?
T21.10XA 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.