ICD-10-CM > S00-T88 > T66-T78 > T78 > T78.2 T78.2 Anaphylactic shock, unspecified Non-Billable/Non-Specific Applicable To Allergic shockAnaphylactic reactionAnaphylaxis Type 1 Excludes anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)anaphylactic reaction or shock due to adverse food reaction (T78.0-)anaphylactic reaction or shock due to serum (T80.5-) Codes T78.2XXA..., initial encounterT78.2XXD..., subsequent encounterT78.2XXS..., sequela