C90.2
Extramedullary plasmacytoma
Clinical Classification Guidelines
Medical Intelligence & Overview
Extramedullary plasmacytoma is a rare type of plasma cell tumor that develops outside of the bone marrow. It is characterized by the abnormal growth of plasma cells, a type of white blood cell involved in producing antibodies. These tumors most frequently occur in soft tissues of the head and neck region, including the nasal cavity, sinuses, oropharynx, and nasopharynx, but can also develop in other body parts. Recognized under the ICD-10 code C90.2, extramedullary plasmacytomas are distinct from multiple myeloma, which involves widespread bone marrow disease.
Causes & Symptoms
Clinical Causes: The precise cause of extramedullary plasmacytoma is unknown. Genetic mutations may play a role in the abnormal growth of plasma cells. Environmental factors or exposure to radiation may increase risk, though evidence is limited. Chronic immune stimulation or certain infections have been suggested as possible triggers, but definitive links have not been established.
Key Symptoms: Localized swelling or mass in affected areas, often in the head or neck region. Nasal congestion or obstruction if the tumor is in the nasal cavity. Nasal discharge or bleeding associated with tumor location. Difficulty swallowing or a sensation of a lump in the throat when in the oropharynx. Persistent pain or discomfort in the tumor site. Changes in voice if the larynx or nearby tissues are involved. In some cases, symptoms may be minimal or absent, especially in early stages.
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves a combination of clinical examination, imaging studies, and laboratory tests. Techniques include:
Treatment Protocols: Treatment strategies aim to control tumor growth and prevent progression. Approaches include:
Clinical Advice & FAQs
Billing Guidance
Is C90.2 a billable ICD-10 code?
Yes, C90.2 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report C90.2?
Clinical documentation must specify the nature of Extramedullary plasmacytoma and any associated comorbidities for accurate reporting.
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