Which condition does NOT lead to a special administrative handling of claims?

The condition that does not lead to a special administrative handling of claims is regular military service. This is because regular military service is considered the standard basis for eligibility for VA benefits and does not incur any additional procedural requirements or expedited handling that might be necessary for conditions with specific historical or environmental contexts.

On the other hand, conditions like exposure to environmental hazards such as those encountered by Gulf War veterans, hepatitis C exposure, and asbestos exposure are all tied to special administrative handling due to their unique complexities and the need for tailored processing. For example, environmental hazards might require specific documentation or verification of exposure, hepatitis C claims often have unique medical considerations, and asbestos-related cases can involve extensive medical evidence due to the long latency period of diseases associated with asbestos exposure. This context necessitates that claims related to these conditions are treated differently to ensure that veterans receive the comprehensive reviews and considerations they deserve.