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  6. 2024 ICD-10-CM Code L50
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code L50

Urticaria

ICD-10-CM Code:
L50
ICD-10 Code for:
Urticaria
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

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

L50 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of urticaria. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Urticaria

Non-specific codes like L50 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for urticaria:

  • Use L50.0 for Allergic urticaria - BILLABLE CODE

  • Use L50.1 for Idiopathic urticaria - BILLABLE CODE

  • Use L50.2 for Urticaria due to cold and heat - BILLABLE CODE

  • Use L50.3 for Dermatographic urticaria - BILLABLE CODE

  • Use L50.4 for Vibratory urticaria - BILLABLE CODE

  • Use L50.5 for Cholinergic urticaria - BILLABLE CODE

  • Use L50.6 for Contact urticaria - BILLABLE CODE

  • Use L50.8 for Other urticaria - BILLABLE CODE

  • Use L50.9 for Urticaria, unspecified - BILLABLE CODE

Clinical Information

  • Angioedema

    swelling involving the deep dermis, subcutaneous, or submucosal tissues, representing localized edema. angioedema often occurs in the face, lips, tongue, and larynx.

  • Chronic Inducible Urticaria

    chronic urticaria with identified triggering factor which is either physical, e.g., vibratory urticaria, or non-physical, e.g., aquagenic urticaria.

  • Chronic Urticaria

    wheals (urticaria) and/or angioedema presented with daily symptoms lasting for more than 6 weeks. it may be classified into chronic spontaneous and chronic inducible urticaria depending on whether a specific trigger can be linked to the development of vascular reaction.

  • Cryopyrin-Associated Periodic Syndromes

    a group of rare autosomal dominant diseases, commonly characterized by atypical urticaria (hives) with systemic symptoms that develop into end-organ damage. the atypical hives do not involve t-cell or autoantibody. cryopyrin-associated periodic syndrome includes three previously distinct disorders: familial cold autoinflammatory syndrome; muckle-wells syndrome; and cinca syndrome, that are now considered to represent a disease continuum, all caused by nlrp3 protein mutations.

  • Exercise-Induced Allergies

    allergic reactions following a period of exercise. elevated serum histamine and tryptase levels and cutaneous mast cell degranulation are often associated with post-exertional allergic reactions which sometimes are triggered only in combination with prior consumption of a specific food such as wheat. allergic symptoms produced post-exercise range from skin eruption, asthma, bronchospasm, and anaphylaxis.

  • Urticaria

    a vascular reaction of the skin characterized by erythema and wheal formation due to localized increase of vascular permeability. the causative mechanism may be allergy, infection, or stress.

  • Urticaria Pigmentosa

    the most common form of cutaneous mastocytosis (mastocytosis, cutaneous) that occurs primarily in children. it is characterized by the multiple small reddish-brown pigmented pruritic macules and papules.

  • Urticaria, Solar

    chromophore-dependent photodermatosis triggered by uv and visible light.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • 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

Patient Education


Hives

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.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.