Why does the health code Hanchuan show Xiaogan?

Hanchuan is a county-level city under the jurisdiction of Xiaogan. Although Hanchuan, as one of the top 100 counties in China, is closer and more convenient to Wuhan than Xiaogan, Hanchuan people are also proud of being close to Wuhan. GDP has always been the leader of all districts and counties in Xiaogan, but after all, Xiaogan governs Hanchuan, and its geographical location is obviously Xiaogan.