ICD-10-CM > S00-T88 > T36-T50 > T47 > T47.9 T47.9 Poisoning by, adverse effect of and underdosing of unspecified agents primarily affecting the gastrointestinal system Non-Billable/Non-Specific Codes T47.91Poisoning by unspecified agents primarily affecting the gastrointestinal system, accidental (unintentional)T47.91XA..., initial encounterT47.91XD..., subsequent encounterT47.91XS..., sequelaT47.92Poisoning by unspecified agents primarily affecting the gastrointestinal system, intentional self-harmT47.92XA..., initial encounterT47.92XD..., subsequent encounterT47.92XS..., sequelaT47.93Poisoning by unspecified agents primarily affecting the gastrointestinal system, assaultT47.93XA..., initial encounterT47.93XD..., subsequent encounterT47.93XS..., sequelaT47.94Poisoning by unspecified agents primarily affecting the gastrointestinal system, undeterminedT47.94XA..., initial encounterT47.94XD..., subsequent encounterT47.94XS..., sequelaT47.95Adverse effect of unspecified agents primarily affecting the gastrointestinal systemT47.95XA..., initial encounterT47.95XD..., subsequent encounterT47.95XS..., sequelaT47.96Underdosing of unspecified agents primarily affecting the gastrointestinal systemT47.96XA..., initial encounterT47.96XD..., subsequent encounterT47.96XS..., sequela