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T78.3XXD
Billable

Angioneurotic edema (subsequent encounter)

Extension type: Subsequent encounter
Chapter 19: Injury, poisoning and certain other consequences of external causes

Inclusion Terms

3 items
  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema

Excludes1

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

Billable Code

T78.3XXD is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Additional Information from Parent Codes

The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.

Inclusion Terms

3 items

From T78.3:

  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema

Excludes1

4 items

From S00-T88:

From T78.3:

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

Excludes2

1 item

From T78:

  • complications of surgical and medical care NEC (T80-T88)

Use Additional Code

1 item

From S00-T88:

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

7th Character Notes

4 items

From T78:

  • The appropriate 7th character is to be added to each code from category T78
  • A: initial encounter
  • D: subsequent encounter
  • S: sequela
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