ICD-10-CM > L00-L99 > L49-L54 > L50 L50 Urticaria Non-Billable/Non-Specific Type 1 Excludes 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) Codes L50.0Allergic urticariaL50.1Idiopathic urticariaL50.2Urticaria due to cold and heatL50.3Dermatographic urticariaL50.4Vibratory urticariaL50.5Cholinergic urticariaL50.6Contact urticariaL50.8Other urticariaL50.9Urticaria, unspecified