ICD-10-CM Diagnosis Code (2025)
Official Description for T49
Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
Coding Notes & Guidelines for T49
poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
Poisoning by local antifungal, anti-infective and anti-inflammatory drugs NOS
Poisoning by antipruritics NOS
Poisoning by local astringents and local detergents NOS
Poisoning by emollients, demulcents and protectants NOS
Poisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations NOS
Poisoning by ophthalmological drugs and preparations NOS
Poisoning by otorhinolaryngological drugs and preparations NOS
Poisoning by dental drugs, topically applied NOS
Poisoning by, adverse effect of and underdosing of spermicides
Poisoning by other topical agents NOS
The appropriate 7th character is to be added to each code from category T49
- A: initial encounter
- D: subsequent encounter
- S: sequela
Child Codes (More Specific Codes for T49):
About ICD-10-CM Code T49 (Poisoning by)
ICD-10-CM code T49 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM T49 became effective on October 1, 2024.
This page provides detailed information about T49 - Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Poisoning by related to adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs.