T28.9
⚠ Non-billable
Corrosions of other and unspecified internal organs
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T28.9
System
ICD-10-CM
Billable
No — use specific code
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 T28.9?
ICD-10-CM code T28.9 represents Corrosions of other and unspecified internal organs. It is a non-billable header code requiring a more specific subcategory in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is T28.9 billable?
No. T28.9 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is T28.9 in?
T28.9 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T28 category
T28
Burn and corrosion of other internal organs
Non-billable
T28.0
Burn of mouth and pharynx
Non-billable
T28.1
Burn of esophagus
Non-billable
T28.2
Burn of other parts of alimentary tract
Non-billable
T28.3
Burn of internal genitourinary organs
Non-billable
T28.4
Burns of other and unspecified internal organs
Non-billable
T28.5
Corrosion of mouth and pharynx
Non-billable
T28.6
Corrosion of esophagus
Non-billable
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