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ICD-10-CM · FY 2026 APRIL UPDATE

T37.5

Poisoning by, adverse effect of and underdosing of antiviral 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
T37.5XPoisoning by, adverse effect of and underdosing of antiviral drugsCategory
T37.5X1Poisoning by antiviral drugs, accidental (unintentional)Category
T37.5X1APoisoning by antiviral drugs, accidental (unintentional), initial encounterBillable
T37.5X1DPoisoning by antiviral drugs, accidental (unintentional), subsequent encounterBillable
T37.5X1SPoisoning by antiviral drugs, accidental (unintentional), sequelaBillable
T37.5X2Poisoning by antiviral drugs, intentional self-harmCategory
T37.5X2APoisoning by antiviral drugs, intentional self-harm, initial encounterBillable
T37.5X2DPoisoning by antiviral drugs, intentional self-harm, subsequent encounterBillable
T37.5X2SPoisoning by antiviral drugs, intentional self-harm, sequelaBillable
T37.5X3Poisoning by antiviral drugs, assaultCategory
T37.5X3APoisoning by antiviral drugs, assault, initial encounterBillable
T37.5X3DPoisoning by antiviral drugs, assault, subsequent encounterBillable
T37.5X3SPoisoning by antiviral drugs, assault, sequelaBillable
T37.5X4Poisoning by antiviral drugs, undeterminedCategory
T37.5X4APoisoning by antiviral drugs, undetermined, initial encounterBillable
T37.5X4DPoisoning by antiviral drugs, undetermined, subsequent encounterBillable
T37.5X4SPoisoning by antiviral drugs, undetermined, sequelaBillable
T37.5X5Adverse effect of antiviral drugsCategory
T37.5X5AAdverse effect of antiviral drugs, initial encounterBillable
T37.5X5DAdverse effect of antiviral drugs, subsequent encounterBillable
T37.5X5SAdverse effect of antiviral drugs, sequelaBillable
T37.5X6Underdosing of antiviral drugsCategory
T37.5X6AUnderdosing of antiviral drugs, initial encounterBillable
T37.5X6DUnderdosing of antiviral drugs, subsequent encounterBillable
T37.5X6SUnderdosing of antiviral drugs, 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.