T49
Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 2 never code together
7th character 3
A initial encounter
D subsequent encounter
S sequela
Instructional notes 4
T49code
Includes
- poisoning by, adverse effect of and underdosing of glucocorticoids, topically used
S00-T88chapter
Notes
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
Use additional code
- code to identify any retained foreign body, if applicable (Z18.-)Z18.-
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 10
T49.0 Local antifungal, anti-infective and anti-inflammatory drugs T49.1 Antipruritics T49.2 Local astringents and local detergents T49.3 Emollients, demulcents and protectants T49.4 Keratolyt/keratplst/hair trmt drug T49.5 Ophthalmological drugs and preparations T49.6 Otorhinolaryngological drugs and preparations T49.7 Dental drugs, topically applied T49.8 Topical agents T49.9 Unsp topical agent
Medications 2
1331 Skin and Connective Tissue Diseases drugs 3319 Drug-Related Side Effects and Adverse Reactions drugs
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.