ICD-10-CM > S00-T88 > T66-T78 > T78 > T78.0 > T78.08 > T78.089 T78.089 Anaphylactic reaction due to eggs, unspecified Non-Billable/Non-Specific Codes T78.089A..., initial encounterT78.089D..., subsequent encounterT78.089S..., sequela