T32.4Header code — not billable
Corrosions involving 40-49% of body surface
- Chapter
- 19. Injury, poisoning and certain other consequences of external causes
- Category
- T32
- Effective date
- October 1, 2026
Related codes in category T32
T32Corrosions classified accord extent body involvT32.0Corrosions involving less than 10% of body surfaceYesT32.1Corrosions involving 10-19% of body surfaceT32.10Corros 10-19% of body surface w 0% to 9% third degree corrosYesT32.11Corros 10-19% of body surface w 10-19% third degree corrosYesT32.2Corrosions involving 20-29% of body surfaceT32.20Corros 20-29% of body surface w 0% to 9% third degree corrosYesT32.21Corros 20-29% of body surface w 10-19% third degree corrosYesT32.22Corros 20-29% of body surface w 20-29% third degree corrosYesT32.3Corrosions involving 30-39% of body surfaceT32.30Corros 30-39% of body surface w 0% to 9% third degree corrosYesT32.31Corros 30-39% of body surface w 10-19% third degree corrosYes
Frequently asked questions
What is ICD-10 code T32.4?
T32.4 is an ICD-10-CM diagnosis code for Corrosions involving 40-49% of body surface.
Is T32.4 a billable code?
No. T32.4 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 T32.4 in?
T32.4 falls under Chapter 19: Injury, poisoning and certain other consequences of external causes.
When did T32.4 become effective?
T32.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to T32.4?
T32.4 belongs to category T32, 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.