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T78.3

Angioneurotic edema

Non-billableCategory

Code Hierarchy

T78T78.3

Chapter: 19. Injury, poisoning and certain other consequences of external causes

Section: T66-T78 - Other and unspecified effects of external causes

Coding Guidelines

Inclusion Terms

  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema

Excludes1 (Mutually Exclusive)

These codes should never be used together with T78.3

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

Specific Codes (3)

T78.3XXABillable

Angioneurotic edema, initial encounter

T78.3XXDBillable

Angioneurotic edema, subsequent encounter

T78.3XXSBillable

Angioneurotic edema, sequela

Related Codes

T78.0Category

Anaphylactic reaction due to food

T78.1Category

Other adverse food reactions, not elsewhere classified

T78.2Category

Anaphylactic shock, unspecified

T78.4Category

Other and unspecified allergy

T78.8Category

Other adverse effects, not elsewhere classified

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