ICD-10-CM > S00-T88 > T66-T78 > T78 > T78.1 > T78.12 T78.12 Other adverse food reaction due to eggs Non-Billable/Non-Specific Codes T78.120Other adverse food reaction due to egg with tolerance to baked eggT78.120A..., initial encounterT78.120D..., subsequent encounterT78.120S..., sequelaT78.121Other adverse food reaction due to egg with reactivity to baked eggT78.121A..., initial encounterT78.121D..., subsequent encounterT78.121S..., sequelaT78.129Other adverse food reaction due to egg with baked egg tolerance/reactivity, unspecifiedT78.129A..., initial encounterT78.129D..., subsequent encounterT78.129S..., sequela