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ICD-10-CM · FY 2026 APRIL UPDATE

T49

Poisoning by, adverse effect of and underdosing of topical agents primarily affecting skin and mucous membrane and by ophthalmological, otorhinorlaryngological and dental drugs

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
T49.0Poisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugsCategory
T49.0XPoisoning by, adverse effect of and underdosing of local antifungal, anti-infective and anti-inflammatory drugsCategory
T49.0X1Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional)Category
T49.0X1APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), initial encounterBillable
T49.0X1DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), subsequent encounterBillable
T49.0X1SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, accidental (unintentional), sequelaBillable
T49.0X2Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harmCategory
T49.0X2APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, initial encounterBillable
T49.0X2DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, subsequent encounterBillable
T49.0X2SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, intentional self-harm, sequelaBillable
T49.0X3Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, assaultCategory
T49.0X3APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, initial encounterBillable
T49.0X3DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, subsequent encounterBillable
T49.0X3SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, assault, sequelaBillable
T49.0X4Poisoning by local antifungal, anti-infective and anti-inflammatory drugs, undeterminedCategory
T49.0X4APoisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, initial encounterBillable
T49.0X4DPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, subsequent encounterBillable
T49.0X4SPoisoning by local antifungal, anti-infective and anti-inflammatory drugs, undetermined, sequelaBillable
T49.0X5Adverse effect of local antifungal, anti-infective and anti-inflammatory drugsCategory
T49.0X5AAdverse effect of local antifungal, anti-infective and anti-inflammatory drugs, initial encounterBillable
T49.0X5DAdverse effect of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounterBillable
T49.0X5SAdverse effect of local antifungal, anti-infective and anti-inflammatory drugs, sequelaBillable
T49.0X6Underdosing of local antifungal, anti-infective and anti-inflammatory drugsCategory
T49.0X6AUnderdosing of local antifungal, anti-infective and anti-inflammatory drugs, initial encounterBillable
T49.0X6DUnderdosing of local antifungal, anti-infective and anti-inflammatory drugs, subsequent encounterBillable
T49.0X6SUnderdosing of local antifungal, anti-infective and anti-inflammatory drugs, sequelaBillable
T49.1Poisoning by, adverse effect of and underdosing of antipruriticsCategory
T49.1XPoisoning by, adverse effect of and underdosing of antipruriticsCategory
T49.1X1Poisoning by antipruritics, accidental (unintentional)Category
T49.1X1APoisoning by antipruritics, accidental (unintentional), initial encounterBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.