Is T49 a billable code?
No. T49 is a header code that groups 162 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
T49: Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
T49 groups related diagnoses under poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under T49
- T49.0X1APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), initial encounter
- T49.0X1DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), subsequent encounter
- T49.0X1SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), sequela
- T49.0X2APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, initial encounter
- T49.0X2DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, subsequent encounter
- T49.0X2SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, sequela
- T49.0X3APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, initial encounter
- T49.0X3DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, subsequent encounter
- T49.0X3SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, sequela
- T49.0X4APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, initial encounter
- T49.0X4DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, subsequent encounter
- T49.0X4SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, sequela
- T49.0X5AAdverse effect of local antifungal, anti-infective and anti-inflammatory drugs, initial encounter
- T49.0X5DAdverse effect of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounter
- T49.0X5SAdverse effect of local antifungal, anti-infective and anti-inflammatory drugs, sequela
- T49.0X6AUnderdosing of local antifungal, anti-infective and anti-inflammatory drugs, initial encounter
- T49.0X6DUnderdosing of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounter
- T49.0X6SUnderdosing of local antifungal, anti-infective and anti-inflammatory drugs, sequela
- T49.1X1APoisoning by antipruritics, accidental (unintentional), initial encounter
- T49.1X1DPoisoning by antipruritics, accidental (unintentional), subsequent encounter
- T49.1X1SPoisoning by antipruritics, accidental (unintentional), sequela
- T49.1X2APoisoning by antipruritics, intentional self-harm, initial encounter
- T49.1X2DPoisoning by antipruritics, intentional self-harm, subsequent encounter
- T49.1X2SPoisoning by antipruritics, intentional self-harm, sequela
- T49.1X3APoisoning by antipruritics, assault, initial encounter
- T49.1X3DPoisoning by antipruritics, assault, subsequent encounter
- T49.1X3SPoisoning by antipruritics, assault, sequela
- T49.1X4APoisoning by antipruritics, undetermined, initial encounter
- T49.1X4DPoisoning by antipruritics, undetermined, subsequent encounter
- T49.1X4SPoisoning by antipruritics, undetermined, sequela
- T49.1X5AAdverse effect of antipruritics, initial encounter
- T49.1X5DAdverse effect of antipruritics, subsequent encounter
- T49.1X5SAdverse effect of antipruritics, sequela
- T49.1X6AUnderdosing of antipruritics, initial encounter
- T49.1X6DUnderdosing of antipruritics, subsequent encounter
- T49.1X6SUnderdosing of antipruritics, sequela
- T49.2X1APoisoning by local astringents and local detergents, accidental (unintentional), initial encounter
- T49.2X1DPoisoning by local astringents and local detergents, accidental (unintentional), subsequent encounter
- T49.2X1SPoisoning by local astringents and local detergents, accidental (unintentional), sequela
- T49.2X2APoisoning by local astringents and local detergents, intentional self-harm, initial encounter
- T49.2X2DPoisoning by local astringents and local detergents, intentional self-harm, subsequent encounter
- T49.2X2SPoisoning by local astringents and local detergents, intentional self-harm, sequela
- T49.2X3APoisoning by local astringents and local detergents, assault, initial encounter
- T49.2X3DPoisoning by local astringents and local detergents, assault, subsequent encounter
- T49.2X3SPoisoning by local astringents and local detergents, assault, sequela
- T49.2X4APoisoning by local astringents and local detergents, undetermined, initial encounter
- T49.2X4DPoisoning by local astringents and local detergents, undetermined, subsequent encounter
- T49.2X4SPoisoning by local astringents and local detergents, undetermined, sequela
- T49.2X5AAdverse effect of local astringents and local detergents, initial encounter
- T49.2X5DAdverse effect of local astringents and local detergents, subsequent encounter
- T49.2X5SAdverse effect of local astringents and local detergents, sequela
- T49.2X6AUnderdosing of local astringents and local detergents, initial encounter
- T49.2X6DUnderdosing of local astringents and local detergents, subsequent encounter
- T49.2X6SUnderdosing of local astringents and local detergents, sequela
- T49.3X1APoisoning by emollients, demulcents and protectants, accidental (unintentional), initial encounter
- T49.3X1DPoisoning by emollients, demulcents and protectants, accidental (unintentional), subsequent encounter
- T49.3X1SPoisoning by emollients, demulcents and protectants, accidental (unintentional), sequela
- T49.3X2APoisoning by emollients, demulcents and protectants, intentional self-harm, initial encounter
- T49.3X2DPoisoning by emollients, demulcents and protectants, intentional self-harm, subsequent encounter
- T49.3X2SPoisoning by emollients, demulcents and protectants, intentional self-harm, sequela
- T49.3X3APoisoning by emollients, demulcents and protectants, assault, initial encounter
- T49.3X3DPoisoning by emollients, demulcents and protectants, assault, subsequent encounter
- T49.3X3SPoisoning by emollients, demulcents and protectants, assault, sequela
- T49.3X4APoisoning by emollients, demulcents and protectants, undetermined, initial encounter
- T49.3X4DPoisoning by emollients, demulcents and protectants, undetermined, subsequent encounter
- T49.3X4SPoisoning by emollients, demulcents and protectants, undetermined, sequela
- T49.3X5AAdverse effect of emollients, demulcents and protectants, initial encounter
- T49.3X5DAdverse effect of emollients, demulcents and protectants, subsequent encounter
- T49.3X5SAdverse effect of emollients, demulcents and protectants, sequela
- T49.3X6AUnderdosing of emollients, demulcents and protectants, initial encounter
- T49.3X6DUnderdosing of emollients, demulcents and protectants, subsequent encounter
- T49.3X6SUnderdosing of emollients, demulcents and protectants, sequela
- T49.4X1APoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional), initial encounter
- T49.4X1DPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional), subsequent encounter
- T49.4X1SPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, accidental (unintentional), sequela
- T49.4X2APoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, initial encounter
- T49.4X2DPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, subsequent encounter
- T49.4X2SPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, intentional self-harm, sequela
- T49.4X3APoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, initial encounter
- T49.4X3DPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, subsequent encounter
- T49.4X3SPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, assault, sequela
- T49.4X4APoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, initial encounter
- T49.4X4DPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, subsequent encounter
- T49.4X4SPoisoning by keratolytics, keratoplastics, and other hair treatment drugs and preparations, undetermined, sequela
- T49.4X5AAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter
- T49.4X5DAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter
- T49.4X5SAdverse effect of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela
- T49.4X6AUnderdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, initial encounter
- T49.4X6DUnderdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, subsequent encounter
- T49.4X6SUnderdosing of keratolytics, keratoplastics, and other hair treatment drugs and preparations, sequela
- T49.5X1APoisoning by ophthalmological drugs and preparations, accidental (unintentional), initial encounter
- T49.5X1DPoisoning by ophthalmological drugs and preparations, accidental (unintentional), subsequent encounter
- T49.5X1SPoisoning by ophthalmological drugs and preparations, accidental (unintentional), sequela
- T49.5X2APoisoning by ophthalmological drugs and preparations, intentional self-harm, initial encounter
- T49.5X2DPoisoning by ophthalmological drugs and preparations, intentional self-harm, subsequent encounter
- T49.5X2SPoisoning by ophthalmological drugs and preparations, intentional self-harm, sequela
- T49.5X3APoisoning by ophthalmological drugs and preparations, assault, initial encounter
- T49.5X3DPoisoning by ophthalmological drugs and preparations, assault, subsequent encounter
- T49.5X3SPoisoning by ophthalmological drugs and preparations, assault, sequela
- T49.5X4APoisoning by ophthalmological drugs and preparations, undetermined, initial encounter
- T49.5X4DPoisoning by ophthalmological drugs and preparations, undetermined, subsequent encounter
- T49.5X4SPoisoning by ophthalmological drugs and preparations, undetermined, sequela
- T49.5X5AAdverse effect of ophthalmological drugs and preparations, initial encounter
- T49.5X5DAdverse effect of ophthalmological drugs and preparations, subsequent encounter
- T49.5X5SAdverse effect of ophthalmological drugs and preparations, sequela
- T49.5X6AUnderdosing of ophthalmological drugs and preparations, initial encounter
- T49.5X6DUnderdosing of ophthalmological drugs and preparations, subsequent encounter
- T49.5X6SUnderdosing of ophthalmological drugs and preparations, sequela
- T49.6X1APoisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), initial encounter
- T49.6X1DPoisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), subsequent encounter
- T49.6X1SPoisoning by otorhinolaryngological drugs and preparations, accidental (unintentional), sequela
- T49.6X2APoisoning by otorhinolaryngological drugs and preparations, intentional self-harm, initial encounter
- T49.6X2DPoisoning by otorhinolaryngological drugs and preparations, intentional self-harm, subsequent encounter
- T49.6X2SPoisoning by otorhinolaryngological drugs and preparations, intentional self-harm, sequela
- T49.6X3APoisoning by otorhinolaryngological drugs and preparations, assault, initial encounter
- T49.6X3DPoisoning by otorhinolaryngological drugs and preparations, assault, subsequent encounter
- T49.6X3SPoisoning by otorhinolaryngological drugs and preparations, assault, sequela
- T49.6X4APoisoning by otorhinolaryngological drugs and preparations, undetermined, initial encounter
- T49.6X4DPoisoning by otorhinolaryngological drugs and preparations, undetermined, subsequent encounter
- T49.6X4SPoisoning by otorhinolaryngological drugs and preparations, undetermined, sequela
- T49.6X5AAdverse effect of otorhinolaryngological drugs and preparations, initial encounter
- T49.6X5DAdverse effect of otorhinolaryngological drugs and preparations, subsequent encounter
- T49.6X5SAdverse effect of otorhinolaryngological drugs and preparations, sequela
- T49.6X6AUnderdosing of otorhinolaryngological drugs and preparations, initial encounter
- T49.6X6DUnderdosing of otorhinolaryngological drugs and preparations, subsequent encounter
- T49.6X6SUnderdosing of otorhinolaryngological drugs and preparations, sequela
- T49.7X1APoisoning by dental drugs, topically applied, accidental (unintentional), initial encounter
- T49.7X1DPoisoning by dental drugs, topically applied, accidental (unintentional), subsequent encounter
- T49.7X1SPoisoning by dental drugs, topically applied, accidental (unintentional), sequela
- T49.7X2APoisoning by dental drugs, topically applied, intentional self-harm, initial encounter
- T49.7X2DPoisoning by dental drugs, topically applied, intentional self-harm, subsequent encounter
- T49.7X2SPoisoning by dental drugs, topically applied, intentional self-harm, sequela
- T49.7X3APoisoning by dental drugs, topically applied, assault, initial encounter
- T49.7X3DPoisoning by dental drugs, topically applied, assault, subsequent encounter
- T49.7X3SPoisoning by dental drugs, topically applied, assault, sequela
- T49.7X4APoisoning by dental drugs, topically applied, undetermined, initial encounter
- T49.7X4DPoisoning by dental drugs, topically applied, undetermined, subsequent encounter
- T49.7X4SPoisoning by dental drugs, topically applied, undetermined, sequela
- T49.7X5AAdverse effect of dental drugs, topically applied, initial encounter
- T49.7X5DAdverse effect of dental drugs, topically applied, subsequent encounter
- T49.7X5SAdverse effect of dental drugs, topically applied, sequela
- T49.7X6AUnderdosing of dental drugs, topically applied, initial encounter
- T49.7X6DUnderdosing of dental drugs, topically applied, subsequent encounter
- T49.7X6SUnderdosing of dental drugs, topically applied, sequela
- T49.8X1APoisoning by other topical agents, accidental (unintentional), initial encounter
- T49.8X1DPoisoning by other topical agents, accidental (unintentional), subsequent encounter
- T49.8X1SPoisoning by other topical agents, accidental (unintentional), sequela
- T49.8X2APoisoning by other topical agents, intentional self-harm, initial encounter
- T49.8X2DPoisoning by other topical agents, intentional self-harm, subsequent encounter
- T49.8X2SPoisoning by other topical agents, intentional self-harm, sequela
- T49.8X3APoisoning by other topical agents, assault, initial encounter
- T49.8X3DPoisoning by other topical agents, assault, subsequent encounter
- T49.8X3SPoisoning by other topical agents, assault, sequela
- T49.8X4APoisoning by other topical agents, undetermined, initial encounter
- T49.8X4DPoisoning by other topical agents, undetermined, subsequent encounter
- T49.8X4SPoisoning by other topical agents, undetermined, sequela
- T49.8X5AAdverse effect of other topical agents, initial encounter
- T49.8X5DAdverse effect of other topical agents, subsequent encounter
- T49.8X5SAdverse effect of other topical agents, sequela
- T49.8X6AUnderdosing of other topical agents, initial encounter
- T49.8X6DUnderdosing of other topical agents, subsequent encounter
- T49.8X6SUnderdosing of other topical agents, sequela
T49 questions
What does T49 mean?
T49 is the ICD-10-CM code for Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.