Back to ICD-10 library
ICD-10-CM · FY 2026 APRIL UPDATE

T42.1

Poisoning by, adverse effect of and underdosing of iminostilbenes

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
T42.1XPoisoning by, adverse effect of and underdosing of iminostilbenesCategory
T42.1X1Poisoning by iminostilbenes, accidental (unintentional)Category
T42.1X1APoisoning by iminostilbenes, accidental (unintentional), initial encounterBillable
T42.1X1DPoisoning by iminostilbenes, accidental (unintentional), subsequent encounterBillable
T42.1X1SPoisoning by iminostilbenes, accidental (unintentional), sequelaBillable
T42.1X2Poisoning by iminostilbenes, intentional self-harmCategory
T42.1X2APoisoning by iminostilbenes, intentional self-harm, initial encounterBillable
T42.1X2DPoisoning by iminostilbenes, intentional self-harm, subsequent encounterBillable
T42.1X2SPoisoning by iminostilbenes, intentional self-harm, sequelaBillable
T42.1X3Poisoning by iminostilbenes, assaultCategory
T42.1X3APoisoning by iminostilbenes, assault, initial encounterBillable
T42.1X3DPoisoning by iminostilbenes, assault, subsequent encounterBillable
T42.1X3SPoisoning by iminostilbenes, assault, sequelaBillable
T42.1X4Poisoning by iminostilbenes, undeterminedCategory
T42.1X4APoisoning by iminostilbenes, undetermined, initial encounterBillable
T42.1X4DPoisoning by iminostilbenes, undetermined, subsequent encounterBillable
T42.1X4SPoisoning by iminostilbenes, undetermined, sequelaBillable
T42.1X5Adverse effect of iminostilbenesCategory
T42.1X5AAdverse effect of iminostilbenes, initial encounterBillable
T42.1X5DAdverse effect of iminostilbenes, subsequent encounterBillable
T42.1X5SAdverse effect of iminostilbenes, sequelaBillable
T42.1X6Underdosing of iminostilbenesCategory
T42.1X6AUnderdosing of iminostilbenes, initial encounterBillable
T42.1X6DUnderdosing of iminostilbenes, subsequent encounterBillable
T42.1X6SUnderdosing of iminostilbenes, 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.