All ICD10 Codes

T49.9

Non-Billable
ChapterS00–T88
Ranksubcategory
Official Description

Poisoning by, adverse effect of and underdosing of unspecified topical agent

Use a more specific code (6 billable)
T49.91Poisoning by unspecified topical agent, accidental (unintentional)T49.92Poisoning by unspecified topical agent, intentional self-harmT49.93Poisoning by unspecified topical agent, assaultT49.94Poisoning by unspecified topical agent, undeterminedT49.95Adverse effect of unspecified topical agentT49.96Underdosing of unspecified topical agent
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).
General instructions are available for the parent sections:
View CH19 NotesView T36-T50 NotesView T49 Notes

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
T36-T50Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
T49Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
T49.9Poisoning by, adverse effect of and underdosing of unspecified topical agentNot billable
T49.91Poisoning by unspecified topical agent, accidental (unintentional)Billable
T49.92Poisoning by unspecified topical agent, intentional self-harmBillable
T49.93Poisoning by unspecified topical agent, assaultBillable
T49.94Poisoning by unspecified topical agent, undeterminedBillable
T49.95Adverse effect of unspecified topical agentBillable
T49.96Underdosing of unspecified topical agentBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to T49.9:

categoryT49
Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
View context instructions
blockT36-T50
Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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