T49
⚠ Non-billable
Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T49
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 T49?
ICD-10-CM code T49 represents Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs. 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 T49 billable?
No. T49 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is T49 in?
T49 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the T49 category
T49.0
Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugs
Non-billable
T49.1
Poisoning by, adverse effect of and underdosing of antipruritics
Non-billable
T49.2
Poisoning by, adverse effect of and underdosing of local astringents and local detergents
Non-billable
T49.3
Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectants
Non-billable
T49.4
Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations
Non-billable
T49.5
Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparations
Non-billable
T49.6
Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparations
Non-billable
T49.7
Poisoning by, adverse effect of and underdosing of dental drugs, topically applied
Non-billable
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