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ICD Hub / Diseases of the skin (L00–L99) / EA10 - Pityriasis rosea
ICD-11

ICD-11 Codes
for EA10 - Pityriasis rosea
Teodor Jurukovski January 1, 1970
Fact checked by: Teodor Jurukovski
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Understanding Pityriasis Rosea (ICD-11: EA10)

Pityriasis rosea, identified by the ICD-11 code EA10, is an acute, self-limiting skin disorder that primarily affects children and young adults, though it can occur at any age. This condition is characterised by a distinctive rash that typically resolves on its own within several weeks to a few months, usually without leaving scars. While the exact cause is not definitively established, it is believed to have an infective origin, potentially triggered by certain viral infections.

Common Symptoms and Presentation of Pityriasis Rosea

The onset of pityriasis rosea often begins with a single, larger oval or circular patch known as a "herald patch." This initial patch is typically pink and slightly scaly, measuring up to 10 cm in diameter. Following the herald patch, a more widespread rash usually develops within a few days to a couple of weeks. This secondary eruption consists of numerous smaller, oval, pink, scaly spots that commonly distribute across the trunk and proximal limbs. This pattern is often described as resembling the branches of a fir tree, leading to the common patient-friendly term "Christmas tree rash." Mild itching may accompany the rash, particularly when the skin becomes warm.

Causes and Risk Factors for Pityriasis Rosea

The precise aetiology of pityriasis rosea remains unknown. However, epidemiological observations, such as seasonal variations and instances of community clustering, suggest an infectious trigger. Certain strains of the herpes virus are suspected, although it is not related to the virus that causes cold sores. Other potential triggers may include bacterial infections or adverse reactions to specific medications. Factors that might increase an individual's susceptibility include a family history of the condition or the use of certain drugs.

Diagnosis of Pityriasis Rosea

The diagnosis of pityriasis rosea is typically established through a clinical examination. Healthcare professionals assess the characteristic appearance of the herald patch followed by the widespread rash, noting its distinctive distribution and scaling pattern. In instances where the diagnosis is uncertain, or to differentiate it from other skin conditions such as ringworm or eczema, further diagnostic steps like a potassium hydroxide (KOH) test or a skin biopsy may be performed.

Treatment and Management Considerations for Pityriasis Rosea

Given that pityriasis rosea is a self-limiting condition, specific medical treatment is often unnecessary, as the rash typically resolves spontaneously within approximately 6 to 10 weeks. Management strategies primarily focus on alleviating symptoms, especially itching. This can involve the use of over-the-counter or prescription anti-itch lotions, cool showers, wearing loose cotton clothing, and applying emollients. For more severe presentations, topical corticosteroids or oral antiviral medications might be prescribed to provide symptom relief and potentially shorten the duration of the illness.

Documentation and Coding for Pityriasis Rosea

For accurate medical billing and record-keeping, the ICD-11 code EA10 is used for Pityriasis rosea. Common clinical synonyms include pityriasis circinata and Gibert pityriasis. When documenting, healthcare providers should detail the presence of a herald patch, the characteristic distribution of the rash, and any associated symptoms like itching. This condition is generally considered a billable diagnosis when a clinical evaluation is performed. The ICD-11 code for pityriasis rosea is EA10.

Frequently asked questions

What is the ICD-11 classification meaning of Pityriasis rosea (EA10)?
Pityriasis rosea (EA10) is classified in ICD-11 as an acute, self-limiting skin disease, likely of infective origin, characterized by a distinctive skin eruption. It is also described as a papulosquamous disorder.
What is the ICD-11 code assigned to Pityriasis rosea?
The ICD-11 code for Pityriasis rosea is EA10.
Does ICD-11 provide specific generation rules or detailed diagnostic criteria for Pityriasis rosea (EA10)?
ICD-11 provides classification codes for conditions like Pityriasis rosea (EA10). Information regarding specific generation rules or detailed diagnostic criteria beyond the classification meaning is not explicitly detailed in the provided context for this code.
How does ICD-11 describe the typical course or nature of Pityriasis rosea (EA10)?
According to ICD-11 classification, Pityriasis rosea (EA10) is characterized as an acute, self-limiting condition. It is noted that the disease typically follows a course where a herald patch appears before the eruption of subsequent lesions.
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