T25.721Header code — not billable

Corrosion of third degree of right foot

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T25
Effective date
October 1, 2026

Related codes in category T25

Frequently asked questions

What is ICD-10 code T25.721?

T25.721 is an ICD-10-CM diagnosis code for Corrosion of third degree of right foot.

Is T25.721 a billable code?

No. T25.721 is a category/header code, not billable on its own — use one of its more specific child codes instead.

What ICD-10-CM chapter is T25.721 in?

T25.721 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T25.721 become effective?

T25.721 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T25.721?

T25.721 belongs to category T25, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.