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ICD-10 CM Code T49.9

T49 Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs

T49.9 Poisoning by, adverse effect of and underdosing of unspecified topical agent

Includes

poisoning by, adverse effect of and underdosing of glucocorticoids, topically used

7th Character

The appropriate 7th character is to be added to each code from category T49

A - initial encounter
D - subsequent encounter
S - sequela

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