T49.4X4
⚠ Non-billable
Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
T49.4X4
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 T49.4X4?
ICD-10-CM code T49.4X4 represents Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined. 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 T49.4X4 billable?
No. T49.4X4 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is T49.4X4 in?
T49.4X4 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
Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
Non-billable
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
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