ICD 10 Coding Alert
Find Context on Immunodeficiency Codes
Question: What kind of support is needed to report D84.821? Do I need to see an immunosuppressant in the meds list? Does the provider need to tell me the drug? 星空入口Forum Participant Answer: According to AHA ICD-10 Coding Clinic Vol 7, No. 4 (2020), ICD-10-CM introduced the following codes in 2020 for the following reasons: Following this logic, you can see that supporting documentation for D84.821 would be evidence of prescribed chemotherapy or immunosuppressants, while D84.822 would require evidence of the patient undergoing radiation therapy or having received a bone marrow transplant. And you would use D84.81 as a secondary code alongside a medically appropriate ICD-10-CM code for the underlying condition. The Coding Clinic also goes on to say you can assign 鈥渕ultiple codes 鈥� to show immunodeficiency due to multiple causes (e.g., cancer and antineoplastic medication).鈥�
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