T78.3

Angioneurotic edema

Requires 7th character

T78.3 requires a 7th character to be reported. Choose a complete code below.

Inclusion terms

Applicable to

  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema

Includes (from T78)

  • Note: Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • Note: The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

Excludes1

Not coded here — never report together with this code.

  • serum urticaria (T80.6-)
  • urticaria (L50.-)

Excludes2

Not included here — may be reported together when both conditions exist.

  • birth trauma (P10-P15) (from T78)
  • obstetric trauma (O70-O71) (from T78)
  • complications of surgical and medical care NEC (T80-T88) (from T78)

Use additional code

Add a code to identify the following, if applicable.

  • code to identify any retained foreign body, if applicable (Z18.-) (from T78)

Code also

An additional code may be needed.

  • , if applicable, place of occurrence, such as: (from T78)
  • highway rest stop (Y92.523) (from T78)
  • school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-) (from T78)
  • service areas as the place of occurrence of the external cause (Y92.52-) (from T78)
  • single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-) (from T78)
  • transport vehicle as the place of occurrence of the external cause (Y92.81-) (from T78)

7th character

This code requires a 7th character (defined at T78). Use the placeholder "X" for missing positions.

CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela

Also known as

  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema
  • Allergy, allergic, angioneurotic edema
  • Angioedema
  • Bannister's disease
  • Disease, diseased, Bannister's
  • Edema, edematous, allergic
  • Edema, edematous, angioneurotic
  • Edema, edematous, circumscribed, acute
  • Edema, edematous, essential, acute
  • Edema, edematous, glottis, glottic, glottidis, allergic
  • Edema, edematous, periodic
  • Edema, edematous, Quincke's
  • Giant, urticaria
  • Quincke's disease or edema
  • Urticaria, with angioneurotic edema

Parent code

  • T78Adverse effects, not elsewhere classifiedNeeds 7th char

More specific codes T78.3

  • T78.3XXAAngioneurotic edema, initial encounterBillable
  • T78.3XXDAngioneurotic edema, subsequent encounterBillable
  • T78.3XXSAngioneurotic edema, sequelaBillable

Related codes

  • T78.0Anaphylactic reaction due to foodNeeds 7th char
  • T78.1Other adverse food reactions, not elsewhere classifiedNeeds 7th char
  • T78.2Anaphylactic shock, unspecifiedNeeds 7th char
  • T78.4Other and unspecified allergyNeeds 7th char
  • T78.8Other adverse effects, not elsewhere classifiedNeeds 7th char

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