L50 vs T78.3
L50 (Urticaria) compared with T78.3 (Angioneurotic edema), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. L50 carries an Excludes1 note covering T78.3: “angioneurotic edema (T78.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. L50 carries an Excludes1 note covering T78.3: “giant urticaria (T78.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. L50 carries an Excludes1 note covering T78.3: “Quincke's edema (T78.3)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
No — do not report together. T78.3 carries an Excludes1 note covering L50: “urticaria (L50.-)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| L50Urticaria | T78.3Angioneurotic edema | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Urticaria is a non-billable ICD-10-CM category code (L50). | Angioneurotic edema is a non-billable ICD-10-CM category code (T78.3). |
| 7th character | — | The appropriate 7th character is to be added to each code from category T78 |
| Includes | — | Allergic angioedema Giant urticaria Quincke's edema |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources