ICD-10-CM D47.Z2 is the diagnosis code for Castleman disease. This code falls under the section "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 â Neoplasms (C00-D49). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions are not included in D47.Z2. If the patient has both, code each condition separately:
Understanding where D47.Z2 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, D47.Z2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
D47.Z2 is the ICD-10-CM diagnosis code for "Castleman disease". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of D47.Z2 is D47.Z ("Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue"). D47.Z2 provides a more specific classification within this category.
D47.Z2 is located in Section D37-D48 â "Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes" within Chapter 2 of the ICD-10-CM Tabular List.
Use D47.Z2 when the patients documented diagnosis matches "Castleman disease" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Castleman disease is D47.Z2.
Yes, D47.Z2 can be used as a primary diagnosis code since it is billable and specific.
D47.Z2 is in Chapter 2 of the ICD-10-CM Tabular List.
Yes, D47.Z2 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.