Other specified disorders involving the immune mechanism, not elsewhere classified
ICD-10 D89.89 is a billable code used to indicate a diagnosis of other specified disorders involving the immune mechanism, not elsewhere classified.
D89.89 encompasses a variety of disorders that involve the immune mechanism but do not fit neatly into other specified categories. These disorders can manifest in various ways, including hematologic conditions that may lead to abnormal blood cell production or function. Conditions such as autoimmune hemolytic anemia, where the immune system mistakenly attacks red blood cells, or immune thrombocytopenic purpura, characterized by low platelet counts due to immune-mediated destruction, may fall under this code. The complexity arises from the diverse nature of these disorders, which can affect multiple organ systems and present with overlapping symptoms. Accurate diagnosis often requires a thorough clinical evaluation, including laboratory tests to assess immune function and blood parameters. As these conditions can lead to significant morbidity, understanding the underlying immune mechanisms is crucial for effective management and treatment.
Detailed lab results, patient history, and treatment plans must be documented.
Patients presenting with unexplained anemia, thrombocytopenia, or leukopenia.
Hematologists should provide clear descriptions of the immune mechanisms involved in the patient's condition.
Comprehensive immune profiling and history of autoimmune disorders.
Patients with recurrent infections or autoimmune symptoms without a clear diagnosis.
Immunologists must document the rationale for the diagnosis and any differential diagnoses considered.
Used to evaluate blood cell counts in patients suspected of having immune-mediated disorders.
Must include indication for the test and relevant clinical findings.
Hematologists should ensure that the CBC results are interpreted in the context of the patient's overall clinical picture.
D89.89 can be used for various immune-mediated disorders that do not have a more specific code, including certain hematologic conditions like immune thrombocytopenic purpura and autoimmune hemolytic anemia.
