T49.9
Header — not billablePoisoning by, adverse effect of and underdosing of unspecified topical agent
The ICD-10 code for poisoning by, adverse effect of and underdosing of unspecified topical agent is T49.9.
T49.9 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under T49.9
- T49.91Poisoning by unspecified topical agent, accidental (unintentional)
- T49.92Poisoning by unspecified topical agent, intentional self-harm
- T49.93Poisoning by unspecified topical agent, assault
- T49.94Poisoning by unspecified topical agent, undetermined
- T49.95Adverse effect of unspecified topical agent
- T49.96Underdosing of unspecified topical agent
Related codes in this category
- T49.0Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugsnon-billable header
- T49.1Poisoning by, adverse effect of and underdosing of antipruriticsnon-billable header
- T49.2Poisoning by, adverse effect of and underdosing of local astringents and local detergentsnon-billable header
- T49.3Poisoning by, adverse effect of and underdosing of emollients, demulcents and protectantsnon-billable header
- T49.4Poisoning by, adverse effect of and underdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparationsnon-billable header
- T49.5Poisoning by, adverse effect of and underdosing of ophthalmological drugs and preparationsnon-billable header
- T49.6Poisoning by, adverse effect of and underdosing of otorhinolaryngological drugs and preparationsnon-billable header
- T49.7Poisoning by, adverse effect of and underdosing of dental drugs, topically appliednon-billable header
- T49.8Poisoning by, adverse effect of and underdosing of other topical agentsnon-billable header
- T49.9Poisoning by, adverse effect of and underdosing of unspecified topical agentnon-billable header