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ICD-10-CM · FY 2026 APRIL UPDATE

T47.9

Poisoning by, adverse effect of and underdosing of unspecified agents primarily affecting the gastrointestinal system

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
T47.91Poisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional)Category
T47.91XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional), initial encounterBillable
T47.91XDPoisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional), subsequent encounterBillable
T47.91XSPoisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional), sequelaBillable
T47.92Poisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harmCategory
T47.92XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harm, initial encounterBillable
T47.92XDPoisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harm, subsequent encounterBillable
T47.92XSPoisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harm, sequelaBillable
T47.93Poisoning by unspecified agents primarily affecting the gastrointestinal system, assaultCategory
T47.93XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, assault, initial encounterBillable
T47.93XDPoisoning by unspecified agents primarily affecting the gastrointestinal system, assault, subsequent encounterBillable
T47.93XSPoisoning by unspecified agents primarily affecting the gastrointestinal system, assault, sequelaBillable
T47.94Poisoning by unspecified agents primarily affecting the gastrointestinal system, undeterminedCategory
T47.94XAPoisoning by unspecified agents primarily affecting the gastrointestinal system, undetermined, initial encounterBillable
T47.94XDPoisoning by unspecified agents primarily affecting the gastrointestinal system, undetermined, subsequent encounterBillable
T47.94XSPoisoning by unspecified agents primarily affecting the gastrointestinal system, undetermined, sequelaBillable
T47.95Adverse effect of unspecified agents primarily affecting the gastrointestinal systemCategory
T47.95XAAdverse effect of unspecified agents primarily affecting the gastrointestinal system, initial encounterBillable
T47.95XDAdverse effect of unspecified agents primarily affecting the gastrointestinal system, subsequent encounterBillable
T47.95XSAdverse effect of unspecified agents primarily affecting the gastrointestinal system, sequelaBillable
T47.96Underdosing of unspecified agents primarily affecting the gastrointestinal systemCategory
T47.96XAUnderdosing of unspecified agents primarily affecting the gastrointestinal system, initial encounterBillable
T47.96XDUnderdosing of unspecified agents primarily affecting the gastrointestinal system, subsequent encounterBillable
T47.96XSUnderdosing of unspecified agents primarily affecting the gastrointestinal system, 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.