ICD-10-CM > S00-T88 > T36-T50 > T36 > T36.6 > T36.6X > T36.6X5 T36.6X5 Adverse effect of rifampicins Non-Billable/Non-Specific Codes T36.6X5A..., initial encounterT36.6X5D..., subsequent encounterT36.6X5S..., sequela