ICD-10 Code D61.818 – Other pancytopenia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D61.818 – Other pancytopenia
What it is
Use this code for pancytopenia when all three blood cell lines are reduced and the record does not identify a more specific cause. It describes a general diagnosis, not a disease by itself.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include anemia-related fatigue, infection risk from low white cells, and bruising or bleeding from low platelets.
When to use this code
Assign D61.818 when the provider documents pancytopenia and does not specify aplastic anemia, marrow failure, or another defined condition. Use it for confirmed pancytopenia in outpatient or inpatient records when the etiology remains unclear. Check documentation if the chart names an underlying disorder.
Do not use for
Do not use this code for isolated anemia, leukopenia, or thrombocytopenia. If the pancytopenia is due to a documented specific disorder, code that condition instead.
Coding tip
Verify that the provider explicitly documents pancytopenia and review the record for a more specific underlying diagnosis before assigning D61.818.