T30.4

ICD-10Billable

Corrosion of unspecified body region, unspecified degree

Official ICD-10-CM descriptor (FY2026)

Corrosion of unspecified body region, unspecified degree

T30.4 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

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

Related codes in T30

T30.0Burn of unspecified body region, unspecified degree

Where this code sits

Chapter: 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block: Burns and corrosions of multiple and unspecified body regions (T30-T32)
Parent code: T30

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.