Blackwater fever (malaria complication)

To support a rating during active disease, medical records showing a confirmed diagnosis are essential. Under the regulation, diagnosis depends on identifying malarial parasites in blood smears or through specific laboratory tests such as antigen detection tests, immunologic or immunochromatographic tests, or molecular tests like polymerase chain reaction. Records from a treating provider documenting active infection and its severity directly support the 100% rating level. For residuals after the active disease resolves, medical records showing damage to the liver, spleen, or central nervous system — or other affected body systems — are the relevant evidence. Test results such as liver function panels, imaging studies, or neurological evaluations can document that harm. Statements from you or others describing how ongoing symptoms affect your work and daily life help show the functional impact of any residual conditions rated under their respective body systems.