ICD-10 Diagnosis Code L50.9

Urticaria, unspecified

Diagnosis Code L50.9

ICD-10: L50.9
Short Description: Urticaria, unspecified
Long Description: Urticaria, unspecified
This is the 2018 version of the ICD-10-CM diagnosis code L50.9

Valid for Submission
The code L50.9 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the skin and subcutaneous tissue (L00–L99)
    • Urticaria and erythema (L49-L54)
      • Urticaria (L50)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code L50.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Acute urticaria
  • Angioedema and/or urticaria
  • Finding of contact sensitivity response
  • Injection site edema
  • Injection site urticaria
  • Urticaria
  • Urticarial skin test reaction
  • Weal
  • Weal reaction

Information for Patients


Also called: Urticaria

Hives are red and sometimes itchy bumps on your skin. An allergic reaction to a drug or food usually causes them. Allergic reactions cause your body to release chemicals that can make your skin swell up in hives. People who have other allergies are more likely to get hives than other people. Other causes include infections and stress.

Hives are very common. They usually go away on their own, but if you have a serious case, you might need medicine or a shot. In rare cases, hives can cause a dangerous swelling in your airways, making it hard to breathe - which is a medical emergency.

  • Angioedema (Medical Encyclopedia)
  • Hives (Medical Encyclopedia)

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