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ICD-10-CM · FY 2026 APRIL UPDATE

T43.8

Poisoning by, adverse effect of and underdosing of other psychotropic 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
T43.8XPoisoning by, adverse effect of and underdosing of other psychotropic drugsCategory
T43.8X1Poisoning by other psychotropic drugs, accidental (unintentional)Category
T43.8X1APoisoning by other psychotropic drugs, accidental (unintentional), initial encounterBillable
T43.8X1DPoisoning by other psychotropic drugs, accidental (unintentional), subsequent encounterBillable
T43.8X1SPoisoning by other psychotropic drugs, accidental (unintentional), sequelaBillable
T43.8X2Poisoning by other psychotropic drugs, intentional self-harmCategory
T43.8X2APoisoning by other psychotropic drugs, intentional self-harm, initial encounterBillable
T43.8X2DPoisoning by other psychotropic drugs, intentional self-harm, subsequent encounterBillable
T43.8X2SPoisoning by other psychotropic drugs, intentional self-harm, sequelaBillable
T43.8X3Poisoning by other psychotropic drugs, assaultCategory
T43.8X3APoisoning by other psychotropic drugs, assault, initial encounterBillable
T43.8X3DPoisoning by other psychotropic drugs, assault, subsequent encounterBillable
T43.8X3SPoisoning by other psychotropic drugs, assault, sequelaBillable
T43.8X4Poisoning by other psychotropic drugs, undeterminedCategory
T43.8X4APoisoning by other psychotropic drugs, undetermined, initial encounterBillable
T43.8X4DPoisoning by other psychotropic drugs, undetermined, subsequent encounterBillable
T43.8X4SPoisoning by other psychotropic drugs, undetermined, sequelaBillable
T43.8X5Adverse effect of other psychotropic drugsCategory
T43.8X5AAdverse effect of other psychotropic drugs, initial encounterBillable
T43.8X5DAdverse effect of other psychotropic drugs, subsequent encounterBillable
T43.8X5SAdverse effect of other psychotropic drugs, sequelaBillable
T43.8X6Underdosing of other psychotropic drugsCategory
T43.8X6AUnderdosing of other psychotropic drugs, initial encounterBillable
T43.8X6DUnderdosing of other psychotropic drugs, subsequent encounterBillable
T43.8X6SUnderdosing of other psychotropic 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.