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ICD-10-CM · FY 2026 APRIL UPDATE

T40.69

Poisoning by, adverse effect of and underdosing of other narcotics

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
T40.691Poisoning by other narcotics, accidental (unintentional)Category
T40.691APoisoning by other narcotics, accidental (unintentional), initial encounterBillable
T40.691DPoisoning by other narcotics, accidental (unintentional), subsequent encounterBillable
T40.691SPoisoning by other narcotics, accidental (unintentional), sequelaBillable
T40.692Poisoning by other narcotics, intentional self-harmCategory
T40.692APoisoning by other narcotics, intentional self-harm, initial encounterBillable
T40.692DPoisoning by other narcotics, intentional self-harm, subsequent encounterBillable
T40.692SPoisoning by other narcotics, intentional self-harm, sequelaBillable
T40.693Poisoning by other narcotics, assaultCategory
T40.693APoisoning by other narcotics, assault, initial encounterBillable
T40.693DPoisoning by other narcotics, assault, subsequent encounterBillable
T40.693SPoisoning by other narcotics, assault, sequelaBillable
T40.694Poisoning by other narcotics, undeterminedCategory
T40.694APoisoning by other narcotics, undetermined, initial encounterBillable
T40.694DPoisoning by other narcotics, undetermined, subsequent encounterBillable
T40.694SPoisoning by other narcotics, undetermined, sequelaBillable
T40.695Adverse effect of other narcoticsCategory
T40.695AAdverse effect of other narcotics, initial encounterBillable
T40.695DAdverse effect of other narcotics, subsequent encounterBillable
T40.695SAdverse effect of other narcotics, sequelaBillable
T40.696Underdosing of other narcoticsCategory
T40.696AUnderdosing of other narcotics, initial encounterBillable
T40.696DUnderdosing of other narcotics, subsequent encounterBillable
T40.696SUnderdosing of other narcotics, 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.