ICD-10 Code D47.1 – Chronic myeloproliferative disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D47.1 – Chronic myeloproliferative disease
What it is
D47.1 identifies a chronic myeloproliferative disease, a group of disorders in which the bone marrow makes too many blood cells. Use this code when documentation names a chronic myeloproliferative disorder without a more specific subtype.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include abnormal blood counts, splenomegaly, fatigue, or thrombosis risk, but the exact presentation depends on the specific myeloproliferative disorder.
When to use this code
Use D47.1 when the provider documents chronic myeloproliferative disease, myeloproliferative disorder, or a similar nonspecific diagnosis. It is appropriate when the record does not identify a more precise entity such as polycythemia vera, essential thrombocythemia, or primary myelofibrosis.
Check documentation if the condition is described as secondary, reactive, or transient, because those terms may point to a different code. Confirm whether the diagnosis is established or only being evaluated.
Do not use for
Do not use this code for acute leukemias, reactive blood count changes, or other clearly specified hematologic diseases. If the provider names a specific myeloproliferative neoplasm, code the more specific diagnosis instead.
Coding tip
Query for the exact myeloproliferative diagnosis when the chart only says “MPN” or “myeloproliferative disorder.”