T23.561Header code — not billable

Corrosion of first degree of back of right hand

Chapter
19. Injury, poisoning and certain other consequences of external causes
Category
T23
Effective date
October 1, 2026

Related codes in category T23

Frequently asked questions

What is ICD-10 code T23.561?

T23.561 is an ICD-10-CM diagnosis code for Corrosion of first degree of back of right hand.

Is T23.561 a billable code?

No. T23.561 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 T23.561 in?

T23.561 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.

When did T23.561 become effective?

T23.561 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to T23.561?

T23.561 belongs to category T23, 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.