Neonatal mortality is associated with all of the following conditions EXCEPT:

Neonatal mortality often arises from various conditions, and understanding the association with each of these is essential. Among the choices given, pneumonia typically does not have as strong an association with neonatal mortality as the other listed conditions.

Asphyxia during birth, sepsis (a severe bacterial infection), and congenital abnormalities are leading causes of death in newborns. Asphyxia can lead to hypoxic-ischemic encephalopathy and other severe complications. Sepsis can quickly progress and overwhelm the infant's immature immune system, contributing significantly to neonatal mortality rates. Congenital abnormalities can result in severe physiological compromises that often lead to early death.

Pneumonia, while it can indeed be a serious condition in newborns, especially preterm infants, is typically more treatable compared to the acute consequences of the other conditions mentioned. Additionally, advancements in neonatal care, including the use of antibiotics and better supportive care, have helped reduce the mortality rate associated with pneumonia significantly. Thus, in the context of neonatal mortality, pneumonia does not stand out as a primary contributor when compared to asphyxia, sepsis, and congenital abnormalities.