T78.3 is the ICD-10 code for Angioneurotic oedema. It is a four-character subcategory of T78 (Adverse effects, not elsewhere classified), the most specific level in the WHO edition. It belongs to the block T66–T78 (Other and unspecified effects of external causes) in Chapter XIX, Injury, poisoning and certain other consequences of external causes.
- Code type
- Subcategory (4 characters)
- Chapter
- XIX · S00–T98
- Classification
- WHO ICD-10, 2019 version
What T78.3 includes
Conditions and terms that are coded here.
- Giant urticaria
- Quincke oedema
What T78.3 excludes
Conditions that look similar but belong under another code.
T78.3 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
T78.3Angioneurotiskt ödem
T78.3Angionevrotisk ødem
DT783Quinkes ødem
T78.3Angioödeema
T78.3Angioneurotisches Ödem
T78.3Œdème angioneurotique
T78.3angioneurotisch oedeem
Listed through more specific codes:
- T78.3XXAAngioneurotic edema, initial encounter
- T78.3XXDAngioneurotic edema, subsequent encounter
- T78.3XXSAngioneurotic edema, sequela
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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