2024 ICD-10-CM Diagnosis Code L93.0

Discoid lupus erythematosus

ICD-10-CM Code:
ICD-10 Code for:
Discoid lupus erythematosus
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Code Navigator:

Code Classification

  • Diseases of the skin and subcutaneous tissue
    • Other disorders of the skin and subcutaneous tissue
      • Lupus erythematosus

L93.0 is a billable diagnosis code used to specify a medical diagnosis of discoid lupus erythematosus. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Chilblain lupus erythematosus
  • Chronic discoid lupus erythematosus
  • Discoid lupus erythematosus
  • Discoid lupus erythematosus of face
  • Discoid lupus erythematosus of foot
  • Discoid lupus erythematosus of genital mucous membranes
  • Discoid lupus erythematosus of hands
  • Discoid lupus erythematosus of lip
  • Discoid lupus erythematosus of mucous membranes
  • Discoid lupus erythematosus of oral mucosa
  • Discoid lupus erythematosus of scalp
  • Familial chilblain lupus erythematosus
  • Gingival disease due to lupus erythematosus
  • Hypermelanosis due to connective tissue disorder
  • Hypertrophic type discoid lupus erythematosus
  • Lichen planus-lupus erythematosus overlap
  • Lupus erythematosus
  • Lupus erythematosus and erythema multiforme-like syndrome
  • Lupus erythematosus chronicus
  • Lupus erythematosus migrans
  • Lupus erythematosus overlap syndrome
  • Lupus erythematosus unguium mutilans
  • Lupus erythematosus-associated calcinosis
  • Lupus erythematosus-associated hypermelanosis
  • Lupus erythematosus-associated nail dystrophy
  • Lupus erythematosus-associated nailfold telangiectasia
  • Lupus erythematosus-associated necrotizing vasculitis
  • Lupus erythematosus-associated papulonodular mucinosis
  • Lupus vasculitis
  • Necrotizing vasculitis secondary to connective tissue disease
  • Neonatal lupus erythematosus
  • Overlap syndrome
  • Poikiloderma due to lupus erythematosus
  • Rosaceous type discoid lupus erythematosus
  • Secondary catabolic mucinosis of skin
  • Subcutaneous nodule associated with lupus erythematosus
  • Telangiectasia of nailfolds

Clinical Classification

Clinical CategoryCCSR Category CodeInpatient Default CCSROutpatient Default CCSR
Other specified inflammatory condition of skinSKN002Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Systemic lupus erythematosus and connective tissue disordersMUS024N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Exosome Component 10|Autoantigen PM-SCL|Autoantigen PM/Scl|EC 3.1.13.-|EXOSC10|P100 Polymyositis-Scleroderma Overlap Syndrome-Associated Autoantigen|PM/Scl-100|Polymyositis/Scleroderma Autoantigen 100 kDa|Polymyositis/Scleroderma Autoantigen 2

    exosome component 10 (885 aa, ~101 kda) is encoded by the human exosc10 gene. this protein plays a role in the maturation and degradation of rna.
  • Other Overlap Syndromes|Other overlap syndromes

    evidence of other overlap syndromes not specified elsewhere.
  • Overlap Syndrome

    an autoimmune, connective tissue disorder in which the patient exhibits features from two or more diseases. these typically include systemic sclerosis, dermatomyositis, polymyositis, rheumatoid arthritis, systemic lupus erythematosus, and sjogren syndrome; in pediatrics the respective pediatric entities are encountered.
  • Scleroderma Polymyositis Overlap Syndrome|Scleroderma Polymyositis

    a rare autoimmune disorder in which patients present with overlapping symptoms of systemic scleroderma and polymyositis or dermatomyositis.
  • Neonatal Lupus Erythematosus

    a self-limited skin rash that appears in the neonatal period and usually resolves in four to six months after birth. it is caused by placental transfer of maternal autoantibodies, usually anti-ro antibody. in a minority of cases, it is associated with congenital heart block, hepatitis, or thrombocytopenia. the mothers of the affected babies may be asymptomatic or suffer from systemic lupus erythematosus, sjogren's syndrome, or rheumatoid arthritis.

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.

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Lupus erythematosus NOS

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert L93.0 to ICD-9-CM

  • ICD-9-CM Code: 695.4 - Lupus erythematosus
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


What is lupus?

Lupus is an autoimmune disease. This means that your immune system attacks healthy cells and tissues by mistake. This can damage many parts of the body, including the joints, skin, kidneys, heart, lungs, blood vessels, and brain.

There are several kinds of lupus:

  • Systemic lupus erythematosus (SLE) is the most common type. It can be mild or severe and can affect many parts of the body.
  • Discoid lupus causes a red rash that doesn't go away
  • Subacute cutaneous lupus causes sores after being out in the sun
  • Drug-induced lupus is caused by certain medicines. It usually goes away when you stop taking the medicine.
  • Neonatal lupus, which is rare, affects newborns. It is probably caused by certain antibodies from the mother.

What causes lupus?

The cause of lupus is unknown.

Who is at risk for lupus?

Anyone can get lupus, but women are most at risk. Lupus is two to three times more common in African American women than in white women. It's also more common in Hispanic, Asian, and Native American women. African American and Hispanic women are more likely to have severe forms of lupus.

What are the symptoms of lupus?

Lupus can have many symptoms, and they differ from person to person. Some of the more common ones are:

  • Pain or swelling in joints
  • Muscle pain
  • Fever with no known cause
  • Red rashes, most often on the face (also called the "butterfly rash")
  • Chest pain when taking a deep breath
  • Hair loss
  • Pale or purple fingers or toes
  • Sensitivity to the sun
  • Swelling in legs or around eyes
  • Mouth ulcers
  • Swollen glands
  • Feeling very tired

Symptoms may come and go. When you are having symptoms, it is called a flare. Flares can range from mild to severe. New symptoms may appear at any time.

How is lupus diagnosed?

There is no specific test for lupus, and it's often mistaken for other diseases. So it may take months or years for a doctor to diagnose it. Your doctor may use many tools to make a diagnosis:

  • Medical history
  • Complete exam
  • Blood tests
  • Skin biopsy (looking at skin samples under a microscope)
  • Kidney biopsy (looking at tissue from your kidney under a microscope)

What are the treatments for lupus?

There is no cure for lupus, but medicines and lifestyle changes can help control it.

People with lupus often need to see different doctors. You will have a primary care doctor and a rheumatologist (a doctor who specializes in the diseases of joints and muscles). Which other specialists you see depends on how lupus affects your body. For example, if lupus damages your heart or blood vessels, you would see a cardiologist.

Your primary care doctor should coordinate care between your different health care providers and treat other problems as they come up. Your doctor will develop a treatment plan to fit your needs. You and your doctor should review the plan often to be sure it is working. You should report new symptoms to your doctor right away so that your treatment plan can be changed if needed.

The goals of the treatment plan are to:

  • Prevent flares
  • Treat flares when they occur
  • Reduce organ damage and other problems

Treatments may include drugs to:

  • Reduce swelling and pain
  • Prevent or reduce flares
  • Help the immune system
  • Reduce or prevent damage to joints
  • Balance the hormones

Besides taking medicines for lupus, you may need to take medicines for problems that are related to lupus such as high cholesterol, high blood pressure, or infection.

Alternative treatments are those that are not part of standard treatment. At this time, no research shows that alternative medicine can treat lupus. Some alternative or complementary approaches may help you cope or reduce some of the stress associated with living with a chronic illness. You should talk to your doctor before trying any alternative treatments.

How can I cope with lupus?

It is important to take an active role in your treatment. It helps to learn more about lupus - being able to spot the warning signs of a flare can help you prevent the flare or make the symptoms less severe.

It is also important to find ways to cope with the stress of having lupus. Exercising and finding ways to relax may make it easier for you to cope. A good support system can also help.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

[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.


[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.