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T28.9

Non-billable

Corrosions of other and unspecified internal organs

T28.9 is the ICD-10-CM code for Corrosions of other and unspecified internal organs. It is a non-billable category code — use a more specific child code such as T28.90 for billing.

Status
Header (non-billable)
Chapter
S00-T88
Parent
T28
Subcodes
3
Edition
FY2026

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

Code first

  • •(T51-T65) to identify chemical and intent

Frequently asked questions

What is ICD-10 code T28.9?
T28.9 is the ICD-10-CM code for "Corrosions of other and unspecified internal organs". It falls under S00-T88 Injury, poisoning and certain other consequences of external causes.
Is T28.9 a billable code?
No — T28.9 is a non-billable header code. Use a more specific child code (such as T28.90) for billing.
What are the subcodes of T28.9?
T28.9 has 3 more specific child codes, including T28.90, T28.91, T28.99.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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