ICD-10 Code D61.810 – Antineoplastic Chemotherapy Induced Pancytopenia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D61.810 – Antineoplastic chemotherapy induced pancytopenia
What it is
This code identifies pancytopenia caused by antineoplastic chemotherapy. It means the patient has decreased red cells, white cells, and platelets after cancer treatment.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include anemia, infection risk from low white cells, and bleeding or bruising from low platelets.
When to use this code
Use D61.810 when the record clearly links pancytopenia to antineoplastic chemotherapy. Code it for chemotherapy-related marrow suppression documented by the provider, not simply for a history of cancer treatment.
If the note states pancytopenia is due to the drug therapy, this code supports that cause-and-effect relationship. Check documentation when the cause is unclear or when another condition may explain the cytopenia.
Do not use for
Do not use this code for pancytopenia without a documented chemotherapy cause. Do not use it when the cytopenia is attributed to another disorder or medication; check documentation.
Coding tip
Confirm that the provider documents chemotherapy as the cause before assigning D61.810.