-
DE
L11.9 – Acantholytic Disorder ICD-10
L11.9 is an ICD-10 diagnosis code for an unspecified acantholytic disorder. It describes skin conditions characterised by loss of cell cohesion within the epidermis.
Add as Preferred SourceThings worth knowing about "L11.9"
L11.9 is an ICD-10 diagnosis code for an unspecified acantholytic disorder. It describes skin conditions characterised by loss of cell cohesion within the epidermis.
What Does the ICD-10 Code L11.9 Mean?
The ICD-10 code L11.9 stands for acantholytic disorder, unspecified. It is used when a skin condition characterised by acantholysis – the loss of cohesion between cells of the outer skin layer (epidermis) – is present but cannot be assigned to a more specific diagnosis within group L11.
Acantholytic dermatoses belong to the group of blistering skin diseases. Acantholysis leads to the formation of blisters or erosions because keratinocytes (skin cells) lose their connections to each other.
Causes and Pathogenesis
Acantholytic changes can have various underlying causes:
- Autoimmune processes: The immune system attacks proteins responsible for cell adhesion (desmosomal proteins).
- Genetic factors: Certain hereditary conditions such as Darier disease or Hailey-Hailey disease result from genetically determined defects in cell adhesion.
- Medications: Some drugs can trigger acantholytic reactions (drug-induced pemphigus reactions).
- Infections: Bacterial toxins (e.g., in bullous impetigo caused by Staphylococci) can cleave desmoglein and cause acantholysis.
- Unknown cause (idiopathic): In some cases, the exact cause remains unclear, which is why the residual code L11.9 is used.
Symptoms
The clinical features of an acantholytic dermatosis can vary depending on the cause. Common symptoms include:
- Blister formation on the skin or mucous membranes
- Erosions and crusting after blisters rupture
- Itching or burning in the affected area
- Skin redness (erythema) surrounding the lesions
- Tenderness or pain in affected skin areas
Diagnosis
Diagnosing an acantholytic dermatosis requires thorough clinical examination as well as additional diagnostic measures:
- Skin biopsy with histology: Demonstrating acantholysis in tissue sections is essential. Intraepidermal clefts or blisters caused by loss of cell adhesion are characteristic findings.
- Direct immunofluorescence (DIF): Used to exclude or confirm autoimmune dermatoses such as pemphigus vulgaris.
- Laboratory tests: Detection of autoantibodies (e.g., anti-desmoglein 1 and 3) when an autoimmune cause is suspected.
- Medical history: A thorough medication history and family history are important diagnostic tools.
Treatment
Treatment depends on the underlying cause of the acantholytic dermatosis:
- Corticosteroids: Topical or systemic corticosteroids to reduce inflammation, particularly in autoimmune forms.
- Immunosuppressants: For severe or chronic cases, medications such as azathioprine, mycophenolate mofetil, or rituximab may be used.
- Antibiotics: For infectious causes (e.g., bullous impetigo).
- Discontinuation of triggering medications: In drug-induced acantholysis, stopping the causative agent is essential.
- Wound care: Careful management of erosions and blisters to prevent secondary infections.
- Sun protection: For photosensitive forms (e.g., Darier disease), consistent UV protection is important.
Related ICD-10 Codes
The code L11.9 belongs to the group L11 – Other acantholytic disorders in ICD-10 Chapter XII (Diseases of the skin and subcutaneous tissue). Related, more specific codes include:
- L11.0 – Acquired keratosis follicularis
- L11.1 – Transient acantholytic dermatosis (Grover disease)
- L11.8 – Other specified acantholytic disorders
References
- World Health Organization (WHO): International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10). Geneva: WHO.
- Bolognia, J.L., Schaffer, J.V., Cerroni, L. (Eds.): Dermatology. 4th Edition. Elsevier, 2018.
- Hertl, M. (Ed.): Autoimmune Diseases of the Skin. Springer-Verlag, 3rd Edition 2011.
Building Blocks for a Healthy Life
As an integrated manufacturer, we develop & produce evidence-based, patented, and non-patented formulations. We work exclusively with plant and natural extracts according to the strictest purity & quality standards.
The combination of science & modern technology with the laws of nature creates solutions consistently tailored to humans – for the highest good: health.
Skip product gallery
Subscription available
Floral
For Healthy Oral Flora & Dental Care
Formulated lozenges with Dentalac®, lactic acid bacteria, and Lactoferrin CLN®30 lozenges
Regular price:
22,90 €
Discount
Subscription available
Lactoferrin 60 Capsules
For your universal protection
As one of the most valuable proteins in the body, lactoferrin is a natural component of the immune system.
60 Capsules
Sale price:
50,00 €
Regular price:
59,90 €
Subscription available
Multivitamin Mineral Complex
Daily basic supply: the complete spectrum of micronutrients
Natural multivitamin complex for the immune system, energy, and central body functions
30 Capsules
Regular price:
29,90 €
Subscription available
Natural Iron
For your iron balance
Specially formulated for your iron balance with plant-based curry leaf iron, Lactoferrin CLN®, and natural Vitamin C from rose hips.
30 Capsules
Regular price:
35,90 €