D45

D45 is an alphanumeric designation used across different systems to label items, codes, or classifications.

In medicine, D45 is the ICD-10-CM code for polycythemia vera, a myeloproliferative neoplasm characterized by an increased red blood cell mass. The condition can lead to high blood viscosity and an elevated risk of thrombosis. Diagnosis is based on blood counts and clinical assessment; treatment aims to reduce red cell mass and prevent complications, commonly through therapeutic phlebotomy and, in some cases, medications such as hydroxyurea.

In other contexts, D45 is used as a model name, part number, or identifier in various industries, including electronics, automotive, and documentation systems. Because it is a short and non-unique code, the exact meaning depends on the domain and source.

As a discrete label, D45 does not denote a single widely recognized concept, but rather a spectrum of domain-specific references. When encountering D45, it is important to consider the surrounding context or accompanying documentation to determine its precise definition in that particular field.