L50.0 ICD-10-CA code: Allergic urticaria
L50.0 is the ICD-10-CA code for “Allergic urticaria” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
L50.0Allergic urticaria
ICD-10-CA · Canada · Also written L500
Index terms
Entries in CIHI’s alphabetical index that lead to L50.0. Searching the index by the condition the note names is how coders reach this code.
- Urticaria, allergic
- Urticaria, due to, food
Notes for L50.0
As CIHI prints them, with any note L50.0 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Allergic contact dermatitis (L23.-)angioneurotic oedema (T78.3)hereditary angio-oedema (E84.1)Quincke's oedema (T78.3)urticaria:• giant (T78.3)• neonatorum (P83.8)• papulosa (L28.2)• pigmentosa (Q82.2)• serum (T80.6)• solar (L56.3)From L50 Urticaria
- Lyme disease (A69.2)rosacea (L71.-)From L50-L54 Urticaria and erythema
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
Where L50.0 sits
- 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
- 2Block L50-L54Urticaria and erythema
- 3Category L50Urticaria
- 4Valid code L50.0Allergic urticaria
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code L50.0 mean?
L50.0 is the ICD-10-CA code for “Allergic urticaria” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is L50.0 in ICD-10-CA?
L50.0 sits under L50 Urticaria, within L50-L54 Urticaria and erythema, within Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).
What coding notes apply to L50.0?
ICD-10-CA lists Excludes notes for L50.0, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.