Thanks XW.
Just had a check. No mention of any health check when you actually apply for the Z visa, it seems to be needed to transfer your Z visa to an RP within 30 days of arriving.
This is all you need to apply for the Z.
Work Visa (Z-visa) is issued to a foreign citizen who is to take up a post or employment in China and his or her accompanying family members, or to give commercial performances in China.
i.Please provide the following documents:
(i) Original passport which has more than 6 months left before it expires from the date of application and sufficient blank visa pages (18 months and more left if intended stay in China is more than one year).
(ii) One completed Visa Application Form (Download) with a recently-taken passport photo. All the items on the application form should be fully filled in with genuine information; if the applicant has a Chinese name, the Chinese name should be filled in; false or incomplete information and illegible characters may lead to refusal of a visa.
(iii) Employment Approval Documents required:
(A) Foreigners who come to China to take up employment as experts, scholars, teachers, managerial personnel and as personnel working in related state or local organizations should provide:
1. Permit for Foreign Experts Working in China(original) issued by the State Bureau of Foreign Experts (original);
2. An Invitation letter of Duly Authorized Unit or a Confirmation letter of Invitation (should be used within 6 months since its issuing date) issued by an authorized unit in China (original).
Thats it! No outside of China Health Check needed!....One less headache!