ICD-10: N61.23

Granulomatous mastitis, bilateral breast

Additional Information

Description

Granulomatous mastitis is a rare inflammatory condition of the breast characterized by the formation of granulomas, which are small areas of inflammation. The ICD-10-CM code N61.23 specifically refers to bilateral granulomatous mastitis, indicating that the condition affects both breasts.

Clinical Description

Definition

Granulomatous mastitis is an inflammatory breast disease that can mimic breast cancer both clinically and radiologically. It is often associated with a variety of underlying causes, including autoimmune diseases, infections, and certain medications. The bilateral aspect of the condition, as denoted by the N61.23 code, suggests that both breasts are involved, which can complicate diagnosis and management.

Symptoms

Patients with bilateral granulomatous mastitis may present with:
- Breast Pain: Discomfort or pain in both breasts.
- Swelling: Enlargement of breast tissue due to inflammation.
- Nodules or Masses: Palpable lumps that may be firm or tender.
- Skin Changes: Erythema (redness) or other skin alterations over the affected areas.
- Discharge: Possible discharge from the nipple, which may be purulent or bloody.

Diagnosis

Diagnosis typically involves a combination of clinical evaluation, imaging studies (such as mammography or ultrasound), and histopathological examination of breast tissue. A biopsy may be necessary to confirm the presence of granulomas and to rule out malignancy.

Etiology

The exact cause of granulomatous mastitis is often unknown, but it can be associated with:
- Autoimmune Disorders: Conditions like lupus or sarcoidosis.
- Infections: Bacterial or fungal infections may trigger the inflammatory response.
- Medications: Certain drugs, particularly those affecting hormonal balance, can contribute to the condition.

Treatment

Management of bilateral granulomatous mastitis can vary based on the severity of symptoms and the underlying cause. Treatment options may include:
- Corticosteroids: To reduce inflammation and control symptoms.
- Antibiotics: If an infectious cause is suspected or confirmed.
- Surgical Intervention: In cases where there are abscesses or significant masses that do not respond to medical therapy.

Prognosis

The prognosis for patients with granulomatous mastitis is generally favorable, especially with appropriate treatment. However, the condition can be chronic and may require ongoing management to prevent recurrence.

Conclusion

ICD-10 code N61.23 is crucial for accurately documenting and billing for cases of bilateral granulomatous mastitis. Understanding the clinical presentation, diagnostic approach, and treatment options is essential for healthcare providers managing this complex condition. Proper coding ensures that patients receive appropriate care and that healthcare providers are reimbursed for their services related to this rare but significant breast disorder.

Clinical Information

Granulomatous mastitis, particularly when classified under ICD-10 code N61.23, is a rare inflammatory condition affecting the breast tissue. Understanding its clinical presentation, signs, symptoms, and patient characteristics is crucial for accurate diagnosis and management.

Clinical Presentation

Granulomatous mastitis typically presents as a localized inflammatory process in the breast, which can be mistaken for other conditions such as infections or malignancies. The condition is characterized by the formation of granulomas, which are small areas of inflammation that can lead to tissue damage.

Signs and Symptoms

  1. Breast Mass: Patients often present with a palpable mass in the breast, which may be tender or painful. The mass can vary in size and may be associated with swelling in the surrounding tissue[14].

  2. Nipple Discharge: Some patients may experience discharge from the nipple, which can be serous or purulent in nature. This symptom can lead to confusion with infectious processes[14].

  3. Skin Changes: There may be associated skin changes over the affected area, including erythema (redness), warmth, and sometimes ulceration. These changes can mimic skin infections or inflammatory breast disease[14].

  4. Systemic Symptoms: While granulomatous mastitis is primarily localized, some patients may report systemic symptoms such as fever or malaise, although these are less common[14].

  5. Bilateral Involvement: As indicated by the ICD-10 code N61.23, this condition can affect both breasts, which is less common than unilateral cases. Bilateral involvement may complicate the clinical picture and requires careful evaluation[12][13].

Patient Characteristics

Granulomatous mastitis predominantly affects women of childbearing age, particularly those who are pregnant or breastfeeding. However, it can also occur in women who are not in these stages of life. Key patient characteristics include:

  • Age: Most commonly seen in women aged 20 to 40 years[14].
  • Reproductive History: A significant number of cases are reported in women who have recently given birth or are lactating, suggesting a potential link to hormonal changes or immune responses during these periods[14].
  • Ethnicity: Some studies suggest a higher prevalence in certain ethnic groups, although more research is needed to establish definitive links[14].
  • History of Autoimmune Conditions: There may be an association with autoimmune diseases, as some patients with granulomatous mastitis have reported conditions such as lupus or rheumatoid arthritis[14].

Conclusion

Granulomatous mastitis, classified under ICD-10 code N61.23, presents with a range of clinical features that can often mimic other breast conditions. The key signs include breast masses, nipple discharge, and skin changes, with a notable prevalence in women of reproductive age. Understanding these characteristics is essential for healthcare providers to ensure accurate diagnosis and appropriate management of this complex condition. Further research into its etiology and optimal treatment strategies remains necessary to improve patient outcomes.

Approximate Synonyms

Granulomatous mastitis, classified under ICD-10 code N61.23, refers to a specific inflammatory condition affecting the breast tissue. Understanding alternative names and related terms can enhance clarity in medical documentation and communication. Below are some alternative names and related terms associated with this condition.

Alternative Names for Granulomatous Mastitis

  1. Lobular Mastitis: This term emphasizes the lobular structure of the breast tissue that may be affected by the condition.
  2. Granulomatous Inflammation of the Breast: A more descriptive term that highlights the inflammatory nature of the condition.
  3. Idiopathic Granulomatous Mastitis: This term is often used when the cause of the granulomatous inflammation is unknown.
  4. Breast Granuloma: A simplified term that refers to the formation of granulomas within the breast tissue.
  1. N61.2: This is the broader ICD-10 code for inflammatory disorders of the breast, under which granulomatous mastitis falls.
  2. N61.21: This code specifies granulomatous mastitis in the right breast, providing a more localized classification.
  3. N61.22: This code specifies granulomatous mastitis in the left breast, similar to N61.21 but for the opposite side.
  4. Mastitis: A general term for inflammation of breast tissue, which can encompass various types, including granulomatous mastitis.
  5. Inflammatory Breast Disease: A broader category that includes various inflammatory conditions affecting the breast, including granulomatous mastitis.

Clinical Context

Granulomatous mastitis is characterized by the formation of granulomas, which are small areas of inflammation that can lead to breast pain, swelling, and sometimes discharge. The condition can be challenging to diagnose and may mimic other breast diseases, including infections or malignancies. Understanding the terminology associated with this condition is crucial for accurate diagnosis, treatment planning, and coding for insurance purposes.

In summary, recognizing the alternative names and related terms for ICD-10 code N61.23 can facilitate better communication among healthcare providers and improve patient care outcomes.

Diagnostic Criteria

Granulomatous mastitis is a rare inflammatory condition of the breast that can be challenging to diagnose due to its nonspecific symptoms and the need to differentiate it from other breast pathologies. The ICD-10 code N61.23 specifically refers to granulomatous mastitis affecting both breasts. Here’s a detailed overview of the criteria used for diagnosing this condition.

Clinical Presentation

Symptoms

Patients with granulomatous mastitis may present with various symptoms, including:
- Breast Pain: Often localized to the affected area.
- Swelling: Noticeable enlargement of the breast tissue.
- Nodules or Masses: Palpable lumps that may be firm or tender.
- Skin Changes: Erythema (redness) or ulceration of the skin overlying the affected area.

Patient History

A thorough patient history is crucial. Key aspects include:
- Previous Breast Conditions: History of infections, trauma, or previous surgeries.
- Pregnancy and Lactation: Granulomatous mastitis is more common in women who are pregnant or breastfeeding.
- Autoimmune Disorders: A history of autoimmune diseases may increase the likelihood of granulomatous mastitis.

Diagnostic Imaging

Mammography

  • Non-Digital and Digital Mammography: These imaging techniques can help identify masses or abnormal areas in breast tissue. However, they may not provide definitive diagnosis due to overlapping features with other conditions[1].

Ultrasound

  • Ultrasound Examination: This is often used to assess the characteristics of breast masses. It can help differentiate between solid and cystic lesions and guide further evaluation.

Magnetic Resonance Imaging (MRI)

  • MRI: In some cases, MRI may be utilized to provide a more detailed view of the breast tissue and to assess the extent of the disease.

Histopathological Examination

Biopsy

  • Tissue Biopsy: A definitive diagnosis of granulomatous mastitis typically requires a biopsy. The histopathological examination will reveal:
  • Granulomas: Non-caseating granulomas are the hallmark of this condition.
  • Inflammatory Cells: Presence of lymphocytes and plasma cells, which indicate an inflammatory process.

Differential Diagnosis

It is essential to rule out other conditions that may mimic granulomatous mastitis, such as:
- Infectious Mastitis: Particularly in lactating women.
- Breast Cancer: Malignancies can present with similar symptoms and imaging findings.
- Other Granulomatous Diseases: Conditions like sarcoidosis or tuberculosis must be considered.

Laboratory Tests

Blood Tests

  • Inflammatory Markers: Elevated levels of markers such as C-reactive protein (CRP) may indicate an inflammatory process.
  • Autoimmune Panel: Testing for autoimmune diseases may be warranted, especially if there is a clinical suspicion.

Conclusion

The diagnosis of granulomatous mastitis (ICD-10 code N61.23) involves a combination of clinical evaluation, imaging studies, and histopathological confirmation. Given the complexity of the condition and its potential overlap with other breast diseases, a multidisciplinary approach involving primary care physicians, radiologists, and pathologists is often necessary to ensure accurate diagnosis and appropriate management. If you suspect granulomatous mastitis, it is crucial to consult a healthcare professional for a comprehensive evaluation and tailored treatment plan.

Treatment Guidelines

Granulomatous mastitis, classified under ICD-10 code N61.23, is a rare inflammatory condition of the breast characterized by the formation of granulomas. This condition can be bilateral, affecting both breasts, and is often associated with various underlying factors, including autoimmune diseases, infections, and certain medications. The management of granulomatous mastitis can be complex and typically involves a combination of medical and surgical approaches.

Standard Treatment Approaches

1. Medical Management

Corticosteroids

Corticosteroids are often the first line of treatment for granulomatous mastitis. They help reduce inflammation and can lead to significant improvement in symptoms. Prednisone is commonly prescribed, and the dosage may vary based on the severity of the condition. The treatment duration can range from several weeks to months, depending on the response to therapy[1].

Antibiotics

In cases where there is a suspicion of infection, antibiotics may be prescribed. However, the effectiveness of antibiotics can be limited, as granulomatous mastitis is not always caused by bacterial infections. Cultures may be taken to identify any specific pathogens, guiding antibiotic therapy if necessary[2].

Immunosuppressive Agents

For patients who do not respond to corticosteroids, immunosuppressive agents such as methotrexate or azathioprine may be considered. These medications can help manage the inflammatory response and are particularly useful in cases associated with autoimmune conditions[3].

2. Surgical Management

Surgical Excision

In cases where medical management fails or if there are significant abscesses, surgical intervention may be necessary. Surgical excision of the affected tissue can provide relief and prevent recurrence. This approach is particularly relevant for patients with localized disease or those who develop complications such as abscess formation[4].

Drainage Procedures

If abscesses are present, drainage may be performed to alleviate symptoms and reduce the risk of further complications. This can be done percutaneously or through surgical means, depending on the size and location of the abscess[5].

3. Follow-Up and Monitoring

Regular follow-up is essential to monitor the response to treatment and to manage any potential complications. Imaging studies, such as ultrasound or MRI, may be utilized to assess the extent of the disease and to evaluate the effectiveness of the treatment regimen[6].

Conclusion

The management of granulomatous mastitis (ICD-10 code N61.23) typically involves a combination of corticosteroids, antibiotics, and, in some cases, immunosuppressive therapy. Surgical options may be necessary for patients who do not respond to medical treatment or who develop complications. Given the complexity of this condition, a multidisciplinary approach involving primary care physicians, surgeons, and specialists in breast health is often beneficial to optimize patient outcomes. Regular monitoring and follow-up care are crucial to ensure effective management and to address any recurrence or complications that may arise.

Related Information

Description

  • Rare inflammatory breast disease
  • Mimics breast cancer clinically and radiologically
  • Bilateral involvement complicates diagnosis and management
  • Causes include autoimmune diseases, infections, and medications
  • Symptoms include breast pain, swelling, nodules or masses, skin changes, and discharge
  • Diagnosis involves clinical evaluation, imaging studies, and histopathological examination
  • Exact cause often unknown but associated with autoimmune disorders, infections, and medications

Clinical Information

  • Localized inflammatory process in breast tissue
  • Palpable mass or swelling in breast
  • Tender or painful breast mass
  • Nipple discharge, serous or purulent
  • Skin changes: erythema, warmth, ulceration
  • Systemic symptoms: fever, malaise (rare)
  • Bilateral involvement (less common)
  • Mostly seen in women aged 20-40 years
  • Association with autoimmune conditions

Approximate Synonyms

  • Lobular Mastitis
  • Granulomatous Inflammation of the Breast
  • Idiopathic Granulomatous Mastitis
  • Breast Granuloma
  • N61.2
  • N61.21
  • N61.22
  • Mastitis
  • Inflammatory Breast Disease

Diagnostic Criteria

  • Breast pain or tenderness
  • Localized swelling or enlargement of breast tissue
  • Presence of palpable nodules or masses
  • Skin changes such as erythema or ulceration
  • History of pregnancy or lactation
  • Previous breast conditions or surgeries
  • Autoimmune disorders or diseases
  • Non-caseating granulomas on biopsy
  • Inflammatory cells and lymphocytes in biopsy
  • Elevated inflammatory markers like CRP

Treatment Guidelines

  • Corticosteroids reduce inflammation
  • Antibiotics may be prescribed if infection suspected
  • Immunosuppressive agents for autoimmune cases
  • Surgical excision for localized disease
  • Drainage procedures for abscesses
  • Regular follow-up and monitoring essential

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