T20.411Header code — not billable

Corrosion of unspecified degree of right ear [any part, except ear drum]

Short description: Corrosion of unspecified degree of right ear

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T20
Effective date
October 1, 2026

Related codes in category T20

Frequently asked questions

What is ICD-10 code T20.411?

T20.411 is an ICD-10-CM diagnosis code for Corrosion of unspecified degree of right ear [any part, except ear drum].

Is T20.411 a billable code?

No. T20.411 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 T20.411 in?

T20.411 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T20.411 become effective?

T20.411 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T20.411?

T20.411 belongs to category T20, 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.