ICD-10-CM > S00-T88 > T36-T50 > T47 > T47.9 > T47.95 T47.95 Adverse effect of unspecified agents primarily affecting the gastrointestinal system Non-Billable/Non-Specific Codes T47.95XA..., initial encounterT47.95XD..., subsequent encounterT47.95XS..., sequela