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ICD-10-CM · FY 2026 APRIL UPDATE

T37.4

Poisoning by, adverse effect of and underdosing of anthelminthics

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
T37.4XPoisoning by, adverse effect of and underdosing of anthelminthicsCategory
T37.4X1Poisoning by anthelminthics, accidental (unintentional)Category
T37.4X1APoisoning by anthelminthics, accidental (unintentional), initial encounterBillable
T37.4X1DPoisoning by anthelminthics, accidental (unintentional), subsequent encounterBillable
T37.4X1SPoisoning by anthelminthics, accidental (unintentional), sequelaBillable
T37.4X2Poisoning by anthelminthics, intentional self-harmCategory
T37.4X2APoisoning by anthelminthics, intentional self-harm, initial encounterBillable
T37.4X2DPoisoning by anthelminthics, intentional self-harm, subsequent encounterBillable
T37.4X2SPoisoning by anthelminthics, intentional self-harm, sequelaBillable
T37.4X3Poisoning by anthelminthics, assaultCategory
T37.4X3APoisoning by anthelminthics, assault, initial encounterBillable
T37.4X3DPoisoning by anthelminthics, assault, subsequent encounterBillable
T37.4X3SPoisoning by anthelminthics, assault, sequelaBillable
T37.4X4Poisoning by anthelminthics, undeterminedCategory
T37.4X4APoisoning by anthelminthics, undetermined, initial encounterBillable
T37.4X4DPoisoning by anthelminthics, undetermined, subsequent encounterBillable
T37.4X4SPoisoning by anthelminthics, undetermined, sequelaBillable
T37.4X5Adverse effect of anthelminthicsCategory
T37.4X5AAdverse effect of anthelminthics, initial encounterBillable
T37.4X5DAdverse effect of anthelminthics, subsequent encounterBillable
T37.4X5SAdverse effect of anthelminthics, sequelaBillable
T37.4X6Underdosing of anthelminthicsCategory
T37.4X6AUnderdosing of anthelminthics, initial encounterBillable
T37.4X6DUnderdosing of anthelminthics, subsequent encounterBillable
T37.4X6SUnderdosing of anthelminthics, 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.