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ICD-10-CM · FY 2026 APRIL UPDATE

T37.9

Poisoning by, adverse effect of and underdosing of unspecified systemic anti-infective and antiparasitics

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
T37.91Poisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional)Category
T37.91XAPoisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional), initial encounterBillable
T37.91XDPoisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional), subsequent encounterBillable
T37.91XSPoisoning by unspecified systemic anti-infective and antiparasitics, accidental (unintentional), sequelaBillable
T37.92Poisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harmCategory
T37.92XAPoisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm, initial encounterBillable
T37.92XDPoisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm, subsequent encounterBillable
T37.92XSPoisoning by unspecified systemic anti-infective and antiparasitics, intentional self-harm, sequelaBillable
T37.93Poisoning by unspecified systemic anti-infective and antiparasitics, assaultCategory
T37.93XAPoisoning by unspecified systemic anti-infective and antiparasitics, assault, initial encounterBillable
T37.93XDPoisoning by unspecified systemic anti-infective and antiparasitics, assault, subsequent encounterBillable
T37.93XSPoisoning by unspecified systemic anti-infective and antiparasitics, assault, sequelaBillable
T37.94Poisoning by unspecified systemic anti-infective and antiparasitics, undeterminedCategory
T37.94XAPoisoning by unspecified systemic anti-infective and antiparasitics, undetermined, initial encounterBillable
T37.94XDPoisoning by unspecified systemic anti-infective and antiparasitics, undetermined, subsequent encounterBillable
T37.94XSPoisoning by unspecified systemic anti-infective and antiparasitics, undetermined, sequelaBillable
T37.95Adverse effect of unspecified systemic anti-infective and antiparasiticCategory
T37.95XAAdverse effect of unspecified systemic anti-infective and antiparasitic, initial encounterBillable
T37.95XDAdverse effect of unspecified systemic anti-infective and antiparasitic, subsequent encounterBillable
T37.95XSAdverse effect of unspecified systemic anti-infective and antiparasitic, sequelaBillable
T37.96Underdosing of unspecified systemic anti-infectives and antiparasiticsCategory
T37.96XAUnderdosing of unspecified systemic anti-infectives and antiparasitics, initial encounterBillable
T37.96XDUnderdosing of unspecified systemic anti-infectives and antiparasitics, subsequent encounterBillable
T37.96XSUnderdosing of unspecified systemic anti-infectives and antiparasitics, 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.