ICD-10-CM 2027
ICD-10 code for allergic urticaria
From the official ICD-10-CM alphabetic index entry “Urticaria › allergic”. Page updated September 29, 2026.
About coding allergic urticaria
The ICD-10-CM code for allergic urticaria is L50.0 (Allergic urticaria).
Within L50 (urticaria), L50.0 is specifically for allergic urticaria. Related codes cover idiopathic urticaria (L50.1), due to cold and heat (L50.2), Dermatographic urticaria (L50.3), Vibratory urticaria (L50.4), Cholinergic urticaria (L50.5), contact urticaria (L50.6), other urticaria (L50.8) and unspecified (L50.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728), DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about allergic urticaria ICD-10 codes
What is the ICD-10 code for allergic urticaria?
- L50.0 — Allergic urticaria.
Is L50.0 billable?
- Yes. L50.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L50.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L50.0 as a principal diagnosis.
Is L50.0 a CC or MCC?
- No. L50.0 is neither a CC nor an MCC under MS-DRG v44.0.