ICD-10-CM
T21.75XA: Corrosion of third degree of buttock, initial encounter
A billable ICD-10-CM diagnosis code.
Source: CDC ICD-10-CM FY2027 order file dated June 16, 2026. Publisher page
- Kind
- Billable code
- Category
- T21
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Nearby codes
A header groups codes and is not billed. A billable code is one you can report.
It's the public CDC file. Check the current ICD-10-CM guidelines before you code.
Code first
The CDC tabular list says to report the code named here before this one.
From T21.7. A note on a category applies to every code under it.
Code first (T51-T65) to identify chemical and intent
Use additional code
The CDC tabular list says to add the code named here after this one when it applies.
From T21.7. A note on a category applies to every code under it.
Use additional external cause code to identify place (Y92)
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From T21. A note on a category applies to every code under it.