L50.2 Urticaria due to cold and heat

Billable ICD-10-CM code, FY2026.

Excludes2 (not included here)

• familial cold urticaria (M04.2)

Applies from L50 Urticaria

Excludes1 (never code together)

• allergic contact dermatitis (L23.-)
• angioneurotic edema (T78.3)
• giant urticaria (T78.3)
• hereditary angio-edema (D84.1)
• Quincke's edema (T78.3)
• serum urticaria (T80.6-)
• solar urticaria (L56.3)
• urticaria neonatorum (P83.8)
• urticaria papulosa (L28.2)
• urticaria pigmentosa (D47.01)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 708.2 Urticaria due to cold and heat

Code annotations containing back-references to L50.2

Back-references to L50

• Code First: F54 Psychological and behavioral factors associated with disorders or diseases classified elsewhere ("urticaria (L50.-)")
• Type 2 Excludes: L27 Dermatitis due to substances taken internally ("urticaria (L50.-)")
• Type 1 Excludes: L95 Vasculitis limited to skin, not elsewhere classified ("urticaria (L50.-)")
• Type 1 Excludes: T78.3 Angioneurotic edema ("urticaria (L50.-)")

Diagnosis Index entries for L50.2

• Urticaria › cold, familial
• Urticaria › due to › cold or heat
• Urticaria › thermal (cold) (heat)

Nearby codes

• L50 Urticaria
• L50.0 Allergic urticaria
• L50.1 Idiopathic urticaria
• L50.2 Urticaria due to cold and heat (this code)
• L50.3 Dermatographic urticaria
• L50.4 Vibratory urticaria
• L50.5 Cholinergic urticaria
• L50.6 Contact urticaria
• L50.8 Other urticaria