ICD-10-CM > S00-T88 > T66-T78 > T78 > T78.3 > T78.3XXA T78.3XXA Angioneurotic edema, initial encounter Billable/Specific Copy Code Copy Description Applicable To Allergic angioedemaGiant urticariaQuincke's edema Type 1 Excludes serum urticaria (T80.6-)urticaria (L50.-)