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

T50.A9

Poisoning by, adverse effect of and underdosing of other bacterial vaccines

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
T50.A91Poisoning by other bacterial vaccines, accidental (unintentional)Category
T50.A91APoisoning by other bacterial vaccines, accidental (unintentional), initial encounterBillable
T50.A91DPoisoning by other bacterial vaccines, accidental (unintentional), subsequent encounterBillable
T50.A91SPoisoning by other bacterial vaccines, accidental (unintentional), sequelaBillable
T50.A92Poisoning by other bacterial vaccines, intentional self-harmCategory
T50.A92APoisoning by other bacterial vaccines, intentional self-harm, initial encounterBillable
T50.A92DPoisoning by other bacterial vaccines, intentional self-harm, subsequent encounterBillable
T50.A92SPoisoning by other bacterial vaccines, intentional self-harm, sequelaBillable
T50.A93Poisoning by other bacterial vaccines, assaultCategory
T50.A93APoisoning by other bacterial vaccines, assault, initial encounterBillable
T50.A93DPoisoning by other bacterial vaccines, assault, subsequent encounterBillable
T50.A93SPoisoning by other bacterial vaccines, assault, sequelaBillable
T50.A94Poisoning by other bacterial vaccines, undeterminedCategory
T50.A94APoisoning by other bacterial vaccines, undetermined, initial encounterBillable
T50.A94DPoisoning by other bacterial vaccines, undetermined, subsequent encounterBillable
T50.A94SPoisoning by other bacterial vaccines, undetermined, sequelaBillable
T50.A95Adverse effect of other bacterial vaccinesCategory
T50.A95AAdverse effect of other bacterial vaccines, initial encounterBillable
T50.A95DAdverse effect of other bacterial vaccines, subsequent encounterBillable
T50.A95SAdverse effect of other bacterial vaccines, sequelaBillable
T50.A96Underdosing of other bacterial vaccinesCategory
T50.A96AUnderdosing of other bacterial vaccines, initial encounterBillable
T50.A96DUnderdosing of other bacterial vaccines, subsequent encounterBillable
T50.A96SUnderdosing of other bacterial vaccines, 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.