T30.4

✓ Billable

Corrosion of unspecified body region, unspecified degree

Injury, poisoning and certain other consequences of external causes (S00-T88)

Also Known As

This code is not for inpatient use. Code to specified site and degree of corrosionCorrosion NOSMultiple corrosion NOS

✅ No additional coding notes for T30.4

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Code Information

CodeT30.4

BillableYes

ParentT30

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)