ICD-10-CM 2027
ICD-10 code for contact urticaria
From the official ICD-10-CM alphabetic index entry “Urticaria › contact”. Page updated September 29, 2026.
About coding contact urticaria
The ICD-10-CM code for contact urticaria is L50.6 (Contact urticaria).
Within L50 (urticaria), L50.6 is specifically for contact urticaria. Related codes cover allergic urticaria (L50.0), idiopathic urticaria (L50.1), due to cold and heat (L50.2), Dermatographic urticaria (L50.3), Vibratory urticaria (L50.4), Cholinergic urticaria (L50.5), 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) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), 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 contact urticaria ICD-10 codes
What is the ICD-10 code for contact urticaria?
- L50.6 — Contact urticaria.
Is L50.6 billable?
- Yes. L50.6 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L50.6 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L50.6 as a principal diagnosis.
Is L50.6 a CC or MCC?
- No. L50.6 is neither a CC nor an MCC under MS-DRG v44.0.