ICD-10-CM > S00-T88 > T36-T50 > T49 > T49.9 T49.9 Poisoning by, adverse effect of and underdosing of unspecified topical agent Non-Billable/Non-Specific Codes T49.91Poisoning by unspecified topical agent, accidental (unintentional)T49.91XA..., initial encounterT49.91XD..., subsequent encounterT49.91XS..., sequelaT49.92Poisoning by unspecified topical agent, intentional self-harmT49.92XA..., initial encounterT49.92XD..., subsequent encounterT49.92XS..., sequelaT49.93Poisoning by unspecified topical agent, assaultT49.93XA..., initial encounterT49.93XD..., subsequent encounterT49.93XS..., sequelaT49.94Poisoning by unspecified topical agent, undeterminedT49.94XA..., initial encounterT49.94XD..., subsequent encounterT49.94XS..., sequelaT49.95Adverse effect of unspecified topical agentT49.95XA..., initial encounterT49.95XD..., subsequent encounterT49.95XS..., sequelaT49.96Underdosing of unspecified topical agentT49.96XA..., initial encounterT49.96XD..., subsequent encounterT49.96XS..., sequela