D84.821
Immunodeficiency due to drugs
Clinical Classification Guidelines
Use Additional Code
- code for adverse effect if applicable, to identify adverse effect of drug (T36-T50 with fifth or six character 5)
Inclusion Terms
- Immunodeficiency due to (current or past) medication
Medical Intelligence & Overview
Immunodeficiency due to drugs, classified under ICD-10 code D84.821, refers to weakened immune system functioning caused by the use of certain medications. This condition can occur with both current and past medication use, leading to an increased vulnerability to infections and other health issues. Recognizing and understanding this form of immunodeficiency is crucial for healthcare providers and patients alike to manage health risks effectively.
Causes & Symptoms
Clinical Causes: Use of immunosuppressive medications, such as chemotherapy drugs for cancer treatment Long-term corticosteroid therapy for autoimmune or inflammatory conditions Certain medications like biologic agents used for autoimmune diseases Use of drugs that affect immune cell function, such as some anticonvulsants or antibiotics History of medication use that has led to a prolonged or permanent impairment of immune responses
Key Symptoms: Increased frequency of infections, including bacterial, viral, or fungal infections Recurrent respiratory infections like pneumonia or sinusitis Frequent skin infections or slow wound healing Persistent or unusual fatigue Fever without an obvious source in immunocompromised individuals
Diagnostic & Treatment
Diagnosis Path: Blood tests to assess immune cell counts, such as lymphocytes Immunoglobulin level measurements to evaluate antibody levels Functional assays to check immune response efficacy Exclusion of other causes of immunodeficiency
Treatment Protocols: Discontinuation or dosage adjustment of the offending medication under medical supervision Administration of prophylactic antibiotics or antifungals in cases with recurrent infections Immunoglobulin replacement therapy in severe cases with significant antibody deficiencies Monitoring immune function regularly to assess recovery or progression Addressing infection promptly and effectively to prevent complications
Clinical Advice & FAQs
Billing Guidance
Is D84.821 a billable ICD-10 code?
Yes, D84.821 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report D84.821?
Clinical documentation must specify the nature of Immunodeficiency due to drugs and any associated comorbidities for accurate reporting.
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