T32.42
✓ Billable
Corrosions involving 40-49% of body surface with 20-29% third degree corrosion
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T32.42
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code T32.42?
ICD-10-CM code T32.42 represents Corrosions involving 40-49% of body surface with 20-29% third degree corrosion. It is a billable diagnosis code in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T32.42 billable?
Yes. T32.42 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is T32.42 in?
T32.42 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T32 category
T32
Corrosions classified according to extent of body surface involved
Non-billable
T32.0
Corrosions involving less than 10% of body surface
Billable
T32.1
Corrosions involving 10-19% of body surface
Non-billable
T32.2
Corrosions involving 20-29% of body surface
Non-billable
T32.3
Corrosions involving 30-39% of body surface
Non-billable
T32.4
Corrosions involving 40-49% of body surface
Non-billable
T32.5
Corrosions involving 50-59% of body surface
Non-billable
T32.6
Corrosions involving 60-69% of body surface
Non-billable
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