Exhibit 3.363

PAGE 1

     I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED ARE TRUE AND CORRECT COPIES OF ALL DOCUMENTS ON FILE OF “SOUTHERN TENNESSEE MEDICAL CENTER, LLC” AS RECEIVED AND FILED IN THIS OFFICE.

     THE FOLLOWING DOCUMENTS HAVE BEEN CERTIFIED:

     CERTIFICATE OF FORMATION, FILED THE NINTH DAY OF NOVEMBER, A.D. 1998, AT 9 O’CLOCK A.M.

     CERTIFICATE OF AMENDMENT, FILED THE TWENTY-SECOND DAY OF JANUARY, A.D. 2002, AT 10 O’CLOCK A.M.

     AND I DO HEREBY FURTHER CERTIFY THAT THE AFORESAID CERTIFICATES ARE THE ONLY CERTIFICATES ON RECORD OF THE AFORESAID LIMITED LIABILITY COMPANY, “SOUTHERN TENNESSEE MEDICAL CENTER, LLC”.

2964663 8100H

110292689

You may verify this certificate online
at corp.delaware.gov/authver.shtml /s/ Jeffrey W. Bullock      Jeffrey W. Bullock, Secretary of State
AUTHENTICATION: 8620132

DATE: 03-14-11

STATE OF DELAWARE

SECRETARY OF STATE

DIVISION OF CORPORATIONS

FILED 09:00 AM 11/09/1998

981431215 – 2964663

CERTIFICATE OF FORMATION
OF
SOUTHERN TENNESSEE MEDICAL CENTER, LLC

Under Section 18-201 of the
Delaware Limited Liability Company Act

     FIRST: The name of the limited liability company is Southern Tennessee Medical Center, LLC (the “Company”).

     SECOND: The address of the registered office of the Company in the State of Delaware is 1013 Centre Road, Wilmington, Delaware 19805.

     THIRD: The name and address of the Company’s registered agent for service of process is Corporation Service Company, 1013 Centre Road, Wilmington, Delaware 19805.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of Formation as of November 5, 1998.

By:	/s/ John M. Franck II
	Name:	John M. Franck II
	Title:	Authorized Person

CERTIFICATE OF AMENDMENT

OF

Southern Tennessee Medical Center, LLC

     1. The name of the limited liability company is Southern Tennessee Medical Center, LLC

     2. The Certificate of Formation of the limited liability company is hereby amended as follows:

The name and address of the registered agent is The Corporation Trust Company Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of Amendment of Southern Tennessee Medical Center, LLC this 15 day of January, 2002.

      Southern Tennessee Medical Center, LLC

/s/ William F. Carpenter III William F. Carpenter III

Manager

Title

STATE OF DELAWARE

SECRETARY OF STATE

DIVISION OF CORPORATIONS

FILED 10:00 AM 01/22/2002

020040790 – 2964663