ICD10BillableValid for clinical use
ICD-10 Code L50.2: Urticaria due to cold and heat
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the skin and subcutaneous tissue (L00-L99).
When is it used?
- May be used when a clinician documents urticaria due to cold and heat in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
12Diseases of the skin and subcutaneous tissue (L00-L99)
block
L49-L54Urticaria and erythema
category
L50Urticaria
currentL50
Official coding notes
Excludes2 (may code together if documented)
- familial cold urticaria (M04.2)
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
Dermatologist
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 238688005high
Cold reflex urticaria
Source: SNOMED International ICD-10 map
SNOMED_CT 302166001high
Cold urticaria with agglutinins
Source: SNOMED International ICD-10 map
SNOMED_CT 302167005high
Cold urticaria with cryoglobulins
Source: SNOMED International ICD-10 map
SNOMED_CT 238689002high
Delayed cold sensitivity
Source: SNOMED International ICD-10 map
SNOMED_CT 1348303000high
F12-associated cold autoinflammatory syndrome
Source: SNOMED International ICD-10 map
SNOMED_CT 238687000high
Familial cold urticaria
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
L50.2
Common synonyms
Urticaria due to cold and heat
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.