ICD-10-CM > S00-T88 > T36-T50 > T48 > T48.9 > T48.90 > T48.903 T48.903 Poisoning by unspecified agents primarily acting on the respiratory system, assault Non-Billable/Non-Specific Codes T48.903A..., initial encounterT48.903D..., subsequent encounterT48.903S..., sequela