ICD-10 Code C96.Z – Other specified malignant neoplasms of lymphoid, hematopoietic and related tissue (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C96.Z – Other specified malignant neoplasms of lymphoid, hematopoietic and related tissue
What it is
This code identifies a malignant neoplasm involving lymphoid, hematopoietic, or related tissue that does not fit a more specific ICD-10-CM category. Use it when the record clearly supports a malignant process but the exact type is not otherwise classified.
Clinical signs
Clinical features vary; refer to documentation. Findings may include evidence of a malignant hematologic or lymphoid process, such as abnormal tissue involvement, mass lesions, or pathology confirming cancer in related tissue.
When to use this code
Use this code when the provider documents a specified malignant neoplasm of lymphoid, hematopoietic, or related tissue and no more specific code is available. It is appropriate when pathology, oncology notes, or discharge summaries identify the malignancy but do not name a better-defined entity. Check documentation if the diagnosis is uncertain or still pending confirmation.
Do not use for
Do not use this code for benign, in situ, or nonmalignant lymphoid or hematopoietic disorders. If the record names a more specific malignant diagnosis, code that condition instead.
Coding tip
Before assigning C96.Z, confirm the documentation states malignancy and does not support a more specific lymphoma, leukemia, or related cancer code.