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ICD-10-CM · FY 2026 APRIL UPDATE

T49.7

Poisoning by, adverse effect of and underdosing of dental drugs, topically applied

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
T49.7XPoisoning by, adverse effect of and underdosing of dental drugs, topically appliedCategory
T49.7X1Poisoning by dental drugs, topically applied, accidental (unintentional)Category
T49.7X1APoisoning by dental drugs, topically applied, accidental (unintentional), initial encounterBillable
T49.7X1DPoisoning by dental drugs, topically applied, accidental (unintentional), subsequent encounterBillable
T49.7X1SPoisoning by dental drugs, topically applied, accidental (unintentional), sequelaBillable
T49.7X2Poisoning by dental drugs, topically applied, intentional self-harmCategory
T49.7X2APoisoning by dental drugs, topically applied, intentional self-harm, initial encounterBillable
T49.7X2DPoisoning by dental drugs, topically applied, intentional self-harm, subsequent encounterBillable
T49.7X2SPoisoning by dental drugs, topically applied, intentional self-harm, sequelaBillable
T49.7X3Poisoning by dental drugs, topically applied, assaultCategory
T49.7X3APoisoning by dental drugs, topically applied, assault, initial encounterBillable
T49.7X3DPoisoning by dental drugs, topically applied, assault, subsequent encounterBillable
T49.7X3SPoisoning by dental drugs, topically applied, assault, sequelaBillable
T49.7X4Poisoning by dental drugs, topically applied, undeterminedCategory
T49.7X4APoisoning by dental drugs, topically applied, undetermined, initial encounterBillable
T49.7X4DPoisoning by dental drugs, topically applied, undetermined, subsequent encounterBillable
T49.7X4SPoisoning by dental drugs, topically applied, undetermined, sequelaBillable
T49.7X5Adverse effect of dental drugs, topically appliedCategory
T49.7X5AAdverse effect of dental drugs, topically applied, initial encounterBillable
T49.7X5DAdverse effect of dental drugs, topically applied, subsequent encounterBillable
T49.7X5SAdverse effect of dental drugs, topically applied, sequelaBillable
T49.7X6Underdosing of dental drugs, topically appliedCategory
T49.7X6AUnderdosing of dental drugs, topically applied, initial encounterBillable
T49.7X6DUnderdosing of dental drugs, topically applied, subsequent encounterBillable
T49.7X6SUnderdosing of dental drugs, topically applied, sequelaBillable

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.