Version 2024

2024 ICD-10-CM Diagnosis Code L23

Allergic contact dermatitis

ICD-10-CM Code:
L23
ICD-10 Code for:
Allergic contact dermatitis
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the skin and subcutaneous tissue
    (L00–L99)
    • Dermatitis and eczema
      (L20-L30)
      • Allergic contact dermatitis
        (L23)

L23 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of allergic contact dermatitis. 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 Allergic contact dermatitis

Non-specific codes like L23 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 allergic contact dermatitis:

  • Use L23.0 for Allergic contact dermatitis due to metals - BILLABLE CODE

  • Use L23.1 for Allergic contact dermatitis due to adhesives - BILLABLE CODE

  • Use L23.2 for Allergic contact dermatitis due to cosmetics - BILLABLE CODE

  • Use L23.3 for Allergic contact dermatitis due to drugs in contact with skin - BILLABLE CODE

  • Use L23.4 for Allergic contact dermatitis due to dyes - BILLABLE CODE

  • Use L23.5 for Allergic contact dermatitis due to other chemical products - BILLABLE CODE

  • Use L23.6 for Allergic contact dermatitis due to food in contact with the skin - BILLABLE CODE

  • Use L23.7 for Allergic contact dermatitis due to plants, except food - BILLABLE CODE

  • L23.8 for Allergic contact dermatitis due to other agents - NON-BILLABLE CODE

  • Use L23.81 for Allergic contact dermatitis due to animal (cat) (dog) dander - BILLABLE CODE

  • Use L23.89 for Allergic contact dermatitis due to other agents - BILLABLE CODE

  • Use L23.9 for Allergic contact dermatitis, unspecified cause - BILLABLE CODE

Clinical Information

  • Allergic Contact Dermatitis

    an inflammatory skin condition caused by an immune response to direct contact between the skin and an allergen. it consists of a delayed type of allergic reaction at the affected site with resulting red, swollen, and blistered skin that may itch or leak.

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.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
  • dermatitis due to substances taken internally L27
  • dermatitis of eyelid H01.1
  • diaper dermatitis L22
  • eczema of external ear H60.5
  • irritant contact dermatitis L24
  • perioral dermatitis L71.0
  • radiation-related disorders of the skin and subcutaneous tissue L55 L59

Patient Education


Allergy

An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are:

  • Pollen
  • Dust mites
  • Mold spores
  • Pet dander
  • Food
  • Insect stings
  • Medicines

Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role.

Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, allergy shots, and avoiding the substances that cause the reactions.


[Learn More in MedlinePlus]

Rashes

A rash is an area of irritated or swollen skin. Many rashes are itchy, red, painful, and irritated. Some rashes can also lead to blisters or patches of raw skin. Rashes are a symptom of many different medical problems. Other causes include irritating substances and allergies. Certain genes can make people more likely to get rashes.

Contact dermatitis is a common type of rash. It causes redness, itching, and sometimes small bumps. You get the rash where you have touched an irritant, such as a chemical, or something you are allergic to, like poison ivy.

Some rashes develop right away. Others form over several days. Although most rashes clear up fairly quickly, others are long-lasting and need long-term treatment.

Because rashes can be caused by many different things, it's important to figure out what kind you have before you treat it. If it is a bad rash, if it does not go away, or if you have other symptoms, you should see your health care provider. Treatments may include moisturizers, lotions, baths, cortisone creams that relieve swelling, and antihistamines, which relieve itching.


[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.