All ICD10 Codes

T78.3

Billable
ChapterS00–T88
Ranksubcategory
Official Description

Angioneurotic edema

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

Instructional Notes

Includes
  • Allergic angioedema
  • Giant urticaria
  • Quincke's edema
Excludes1(Not coded here)
  • serum urticaria (T80.6-)
  • urticaria (L50.-)
General instructions are available for the parent sections:
View CH19 NotesView T66-T78 NotesView T78 Notes

Clinical Hierarchy

CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
T66-T78Other and unspecified effects of external causes (T66-T78)
T78Adverse effects, not elsewhere classified
T78.3Angioneurotic edema

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to T78.3:

categoryT78
Adverse effects, not elsewhere classified
View context instructions
blockT66-T78
Other and unspecified effects of external causes (T66-T78)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to T78.3. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

18 raw paths
Allergy, allergic (reaction) (to)1 unique routes
angioneurotic edema→T78.3
Angioedema (allergic) (any site) (with urticaria)1 unique routes
Direct index entry→T78.3
Angioneurotic edema (allergic) (any site) (with urticaria)1 unique routes
Direct index entry→T78.3
Bannister's disease1 unique routes
Direct index entry→T78.3
Disease, diseased1 unique routes
Bannister's→T78.3
Edema, edematous (infectious) (pitting) (toxic)7 unique routes
allergic→T78.3
angioneurotic (allergic) (any site) (with urticaria)→T78.3
circumscribed, acute→T78.3
essential, acute→T78.3
glottis, glottic, glottidis (obstructive) (passive)
allergic→T78.3
periodic→T78.3
Quincke's→T78.3
Giant1 unique routes
urticaria→T78.3
Quincke's disease or edema1 unique routes
Direct index entry→T78.3
Urticaria4 unique routes
giant→T78.3
gigantea→T78.3
larynx→T78.3
with angioneurotic edema→T78.3

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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