T49

ICD-10Non-billable category

Topical skin/eye/ENT/dental drugs

Official ICD-10-CM descriptor (FY2026)

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

T49 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

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

Permitted 7th characters

Ainitial encounter
Dsubsequent encounter
Ssequela

More specific codes under T49

Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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