TABLE OF CONTENTS

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SECTION 1.		DEFINITIONS					1
		1.1		Defined Terms			1
		1.2		Other Definitional Provisions			12
SECTION 2.		AMOUNT AND TERMS OF COMMITMENTS					13
		2.1		Term Commitments			13
		2.2		Procedure for Term Loan Borrowing			13
		2.3		Repayment of Term Loans			13
		2.4		Optional Prepayments			13
		2.5		Mandatory Prepayments			14
		2.6		Conversion and Continuation Options			14
		2.7		Limitations on Eurodollar Tranches			15
		2.8		Interest Rates and Payment Dates			15
		2.9		Computation of Interest and Fees			15
		2.10		Inability to Determine Interest Rate			16
		2.11		Pro Rata Treatment and Payments			16
		2.12		Requirements of Law			17
		2.13		Taxes			18
		2.14		Indemnity			20
		2.15		Change of Lending Office			20
		2.16		Replacement of Banks			21
SECTION 3.		REPRESENTATIONS AND WARRANTIES					21
		3.1		Corporate Organization and Existence			21
		3.2		Subsidiaries			21
		3.3		Financial Information			22
		3.4		Changes in Condition			22
		3.5		Assets			22
		3.6		Litigation			22
		3.7		Tax Returns			23
		3.8		Contracts, etc			23
		3.9		No Legal Obstacle to Agreement			23
		3.10		Defaults			24
		3.11		Burdensome Obligations			24
		3.12		Pension Plans			24
		3.13		Disclosure			24
		3.14		Environmental and Public and Employee Health and Safety Matters			24
		3.15		Federal Regulations			25
		3.16		Investment Company Act; Other Regulations			25
SECTION 4.		CONDITIONS					25
		4.1		Loan Documents			25
		4.2		Legal Opinions			25
		4.3		Company Officers Certificate			26
		4.4		Legality, etc			26
		4.5		General			26

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		4.6		Fees			26
		4.7		Rating			26
SECTION 5.		GENERAL COVENANTS					26
		5.1		Taxes, Indebtedness, etc			27
		5.2		Maintenance of Properties; Compliance with Law			27
		5.3		Transactions with Affiliates			27
		5.4		Insurance			28
		5.5		Financial Statements			28
		5.6		Ratio of Consolidated Total Debt to Consolidated Total Capitalization			30
		5.7		Interest Coverage Ratio			31
		5.8		Distributions			31
		5.9		Merger or Consolidation			31
		5.10		Sales of Assets			31
		5.11		Compliance with ERISA			31
		5.12		Negative Pledge			32
		5.13		Sale-and-Leaseback Transactions			33
		5.14		Use of Proceeds			33
SECTION 6.		DEFAULTS					33
		6.1		Events of Default			33
		6.2		Annulment of Defaults			35
		6.3		Waivers			35
		6.4		Course of Dealing			36
SECTION 7.		THE AGENT					36
		7.1		Appointment			36
		7.2		Delegation of Duties			36
		7.3		Exculpatory Provisions			36
		7.4		Reliance by Agent			37
		7.5		Notice of Default			37
		7.6		Non-Reliance on Agent and Other Banks			37
		7.7		Indemnification			38
		7.8		Agent in Its Individual Capacity			38
		7.9		Successor Agent			38
		7.10		Agents Generally			38
SECTION 8.		MISCELLANEOUS					38
		8.1		Amendments and Waivers			38
		8.2		Notices			39
		8.3		No Waiver; Cumulative Remedies			40
		8.4		Survival of Representations and Warranties			40
		8.5		Payment of Expenses and Taxes; Indemnity			40
		8.6		Successors and Assigns; Participations; Purchasing Banks			41
		8.7		Adjustments; Set-off			44
		8.8		USA PATRIOT Act			44
		8.9		Counterparts			44
		8.10		GOVERNING LAW			45
		8.11		WAIVERS OF JURY TRIAL			45
		8.12		Submission To Jurisdiction; Waivers			45

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SCHEDULES:
Schedule I.		Commitment Amounts; Lending Offices; Addresses for Notice
Schedule II.		Subsidiaries of the Company
Schedule III.		Indebtedness of the Company and its Subsidiaries
Schedule IV.		Applicable Margin
Schedule V.		Significant Litigation
EXHIBITS:
Exhibit A.		Form of Term Note
Exhibit B.		Form of Commitment Transfer Supplement
Exhibit C.		Form of Exemption Certificate

     CREDIT AGREEMENT (this Agreement), dated as of May 25, 2006 among HCA INC., a Delaware corporation (the Company), the several banks and other financial institutions from time to time parties hereto (the Banks), MERRILL LYNCH & CO., MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, as Sole Lead Arranger and Sole Bookrunner, MERRILL LYNCH CAPITAL CORPORATION, as administrative agent (in such capacity, the Agent).

     In consideration of the promises and mutual agreements herein contained and for good and valuable consideration the parties hereto agree as follows:

SECTION 1. DEFINITIONS

     1.1 Defined Terms. As used in this Agreement, the following terms have the meanings specified below:

     Administrative Questionnaire: an Administrative Questionnaire in a form supplied by the Agent.

     Affiliate: (a) any director or officer of any corporation or partner or joint venturer or Person holding a similar position in another Person or members of their families, whether or not living under the same roof, or any Person owning beneficially more than 5% of the outstanding common stock or other evidences of beneficial interest of the Person in question, (b) any Person of which any one or more of the Persons described in clause (a) above is an officer, director or beneficial owner of more than 5% of the shares or other beneficial interest and (c) any Person controlled by, controlling or under common control with the Person in question.

     Agent: Merrill Lynch Capital Corporation, in its capacity as administrative agent for the Banks hereunder.

     Aggregate Exposure: with respect to any Bank at any time, an amount equal to (a) until the Closing Date, the aggregate amount of such Banks Commitment at such time and (b) thereafter, the aggregate then unpaid principal amount of such Banks Term Loans.

     Aggregate Exposure Percentage: with respect to any Bank at any time, the ratio (expressed as a percentage) of such Banks Aggregate Exposure at such time to the Aggregate Exposure of all Banks at such time.

     Agreement: as defined in the preamble hereto.

     Alternate Base Rate: for any day, a rate per annum (rounded upwards, if necessary, to the next 1/100 of 1%) equal to the greatest of (a) the Prime Rate in effect on such day, (b) the Base CD Rate in effect on such day plus 1% and (c) the Federal Funds Effective Rate in effect on such day plus ¹/2 of 1%. For purposes hereof: Prime Rate shall mean the rate of interest per annum publicly announced from time to time by the Agent as its prime rate in effect at its principal office in New York City (each change in the Prime Rate to be effective on the date such change is publicly announced); Base CD Rate shall mean the sum of (a) the

product of (i) the Three-Month Secondary CD Rate and (ii) a fraction, the numerator of which is one and the denominator of which is one minus the C/D Reserve Percentage and (b) the C/D Assessment Rate; Three-Month Secondary CD Rate shall mean, for any day, the secondary market rate for three-month certificates of deposit reported as being in effect on such day (or, if such day shall not be a Business Day, the next preceding Business Day) by the Board of Governors of the Federal Reserve System (the Board) through the public information telephone line of the Federal Reserve Bank of New York (which rate will, under the current practices of the Board, be published in Federal Reserve Statistical Release H.15(519) during the week following such day), or, if such rate shall not be so reported on such day or such next preceding Business Day, the average of the secondary market quotations for three-month certificates of deposit of major money center banks in New York City received at approximately 10:00 A.M., New York City time, on such day (or, if such day shall not be a Business Day, on the next preceding Business Day) by the Agent from three New York City negotiable certificate of deposit dealers of recognized standing selected by it; C/D Reserve Percentage shall mean, for any day, that percentage (expressed as a decimal) which is in effect on such day, as prescribed by the Board (or any successor), for determining the maximum reserve requirement for a member bank of the Federal Reserve System in New York City with deposits exceeding one billion Dollars in respect of new non-personal three-month certificates of deposit in the secondary market in Dollars in New York City and in an amount of $100,000 or more; C/D Assessment Rate shall mean, for any day, the net annual assessment rate (rounded upward to the nearest 1/100 of 1%) determined by Merrill to be payable on such day to the Federal Deposit Insurance Corporation or any successor (the FDIC) for FDICs insuring time deposits made in Dollars at offices of Merrill in the United States; and Federal Funds Effective Rate shall mean, for any day, the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System arranged by federal funds brokers, as published on the next succeeding Business Day by the Federal Reserve Bank of New York, or, if such rate is not so published for any day which is a Business Day, the average of the quotations for the day of such transactions received by the Agent from three federal funds brokers of recognized standing selected by it. If for any reason the Agent shall have determined (which determination shall be conclusive absent manifest error) that it is unable to ascertain the Base CD Rate or the Federal Funds Effective Rate, or both, for any reason, including the inability or failure of the Agent to obtain sufficient quotations in accordance with the terms thereof, the Alternate Base Rate shall be determined without regard to clause (b) or (c), or both, of the first sentence of this definition, as appropriate, until the circumstances giving rise to such inability no longer exist. Any change in the Alternate Base Rate due to a change in the Prime Rate, the Three-Month Secondary CD Rate or the Federal Funds Effective Rate shall be effective on the effective day of such change in the Prime Rate, the Three-Month Secondary CD Rate or the Federal Funds Effective Rate, respectively.