-
DE
L04.9 - Acute Lymphadenitis, Unspecified
L04.9 is the ICD-10 code for acute lymphadenitis, unspecified. It describes a sudden inflammation of one or more lymph nodes without a documented specific location or cause.
Add as Preferred SourceThings worth knowing about "L04.9"
L04.9 is the ICD-10 code for acute lymphadenitis, unspecified. It describes a sudden inflammation of one or more lymph nodes without a documented specific location or cause.
What is L04.9?
The ICD-10 code L04.9 stands for Acute lymphadenitis, unspecified. This code is assigned when a sudden inflammation of the lymph nodes is diagnosed, but no specific anatomical location or underlying cause is documented. Lymph nodes are small, bean-shaped organs of the immune system distributed throughout the body, playing a central role in immune defense.
Causes
Acute lymphadenitis typically occurs as an immune response to infection or inflammation. Common causes include:
- Bacterial infections: often caused by Staphylococci or Streptococci, frequently associated with skin wounds or infections.
- Viral infections: such as common colds, influenza, or other respiratory tract infections.
- Dental infections or tonsillitis: which can lead to swollen lymph nodes in the neck region.
- Skin infections or wounds near a lymph node.
- Less commonly: parasitic infections or specific diseases such as tuberculosis.
Symptoms
Typical symptoms of acute lymphadenitis include:
- Sudden swelling of one or more lymph nodes
- Pain and tenderness in the affected area
- Redness and warmth of the skin overlying the swollen lymph node
- General symptoms of illness such as fever, fatigue, and malaise
- In severe cases: abscess formation (collection of pus) at the lymph node
Diagnosis
The diagnosis of acute lymphadenitis (L04.9) is established through:
- Physical examination: palpation of lymph nodes to assess size, consistency, and tenderness.
- Blood tests: measurement of inflammatory markers such as CRP (C-reactive protein) and complete blood count.
- Ultrasound: imaging of the lymph nodes and surrounding structures.
- Swab or culture: in cases of suspected bacterial infection, a microbial culture may be obtained.
- In unclear cases: lymph node biopsy to exclude other conditions such as lymphoma.
Treatment
Treatment is guided by the underlying cause of the lymphadenitis:
- Antibiotics: targeted antibiotic therapy for bacterial infections (e.g., penicillin or amoxicillin).
- Antiviral medications: for specific viral triggers.
- Pain-relieving and anti-inflammatory agents: such as ibuprofen or paracetamol to reduce pain and fever.
- Surgical drainage: if an abscess has formed, surgical incision and drainage may be required.
- Treatment of the underlying condition: eliminating the primary source of infection (e.g., dental abscess, wound infection) usually leads to resolution of the lymphadenitis.
Prognosis
The prognosis of acute lymphadenitis is generally good. With timely treatment of the underlying cause, symptoms typically resolve within days to weeks. In cases of abscess formation or in immunocompromised patients, the course may be more severe and require more intensive medical management.
References
- World Health Organization (WHO): ICD-10 International Statistical Classification of Diseases and Related Health Problems, 10th Revision. Geneva: WHO, 2019.
- Swartz, M. N.: Lymphadenopathy and Lymphangitis. In: Harrison's Principles of Internal Medicine, 21st Edition. McGraw-Hill, 2022.
- Bazemore, A. W., Smucker, D. R.: Lymphadenopathy and Malignancy. American Family Physician, 2002; 66(11):2103-2110.
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 €