SHELF UNDERWRITING AGREEMENT April 20, 1994 Columbia/HCA Healthcare Corporation 201 West Main Street Louisville, Kentucky 40202 Dear Sirs: We (the "Managers") are acting on behalf of the underwriter or underwriters (including ourselves) named below (such underwriter or underwriters being herein called the "Underwriters"), and we understand that Columbia/HCA Healthcare Corporation, a Delaware corporation (the "Company"), proposes to issue and sell $150,000,000 aggregate principal amount of its 8.36% Debentures due April 15, 2024 (the "Debentures"). The Debentures are sometimes referred to herein as the "Offered Securities." The Offered Securities will be issued pursuant to the provisions of an Indenture dated as of December 15, 1993 (the "Indenture") between the Company and The First National Bank of Chicago, as Trustee (the "Trustee"). Subject to the terms and conditions set forth or incorporated by reference herein, the Company hereby agrees to sell and the Underwriters agree to purchase, severally and not jointly, the respective principal amounts of the Debentures set forth below opposite their names at a purchase price of 99.35% of the principal amount of the Debentures. PRINCIPAL AMOUNT OF DEBENTURES ---------------- Morgan Stanley & Co. Incorporated........................................... $ 37,500,000 Donaldson, Lufkin & Jenrette Securities Corporation......................... 37,500,000 Merrill Lynch, Pierce, Fenner & Smith Incorporated.......................... 37,500,000 J.P. Morgan Securities Inc.................................................. 37,500,000 ---------------- Total..................................................................... $ 150,000,000 ---------------- ---------------- The Underwriters will pay for the Offered Securities upon delivery thereof at the offices of Morgan Stanley & Co. Incorporated or through the facilities of the Depository Trust Company at 9:00 a.m. (New York time) on April 27, 1994. The time and date of such payment and delivery are hereinafter referred to as the Closing Date. The Offered Securities shall have the terms set forth in the Prospectus dated November 22, 1993, and the Prospectus Supplement dated April 20, 1994, including the following: Public Offering Price: 100% of principal amount Put Price to Public: 90.95% of principal amount Purchase Price: 99.35% of principal amount Maturity Date: April 15, 2024 Put Date: April 15, 2004 Interest Rate: 8.36% Redemption Provisions: Not redeemable prior to maturity Interest Payment Dates: April 15 and October 15, commencing October 15, 1994. Interest accrues from April 15, 1994 Current Ratings: Standard & Poor's Corporation -- BBB+ Moody's Investor Service -- A3 All provisions contained in the document entitled Underwriting Agreement Standard Provisions (Debt Securities), a copy of which is attached hereto, are herein incorporated by reference in their entirety and shall be deemed to be a part of this Agreement to the same extent as if such provisions had been set forth in full herein, except that (i) if any term defined in such document is otherwise defined herein, the definition set forth herein shall control, (ii) all references in such document to a type of security that is not an Offered Security shall not be deemed to be a part of this Agreement, and (iii) all references in such document to a type of agreement that has not been entered into in connection with the transactions contemplated hereby shall not be deemed to be a part of this Agreement. Please confirm your agreement by having an authorized officer sign a copy of this Agreement in the space set forth below. Very truly yours, MORGAN STANLEY & CO. INCORPORATED DONALDSON, LUFKIN & JENRETTE SECURITIES CORPORATION MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED J.P. MORGAN SECURITIES INC. By: MORGAN STANLEY & CO. INCORPORATED Acting severally on behalf of itself and the several Underwriters named herein By: ______________________________________ Name: ____________________________________ Title: ___________________________________ Accepted: COLUMBIA/HCA HEALTHCARE CORPORATION By: _____________________________ Name: ___________________________ Title: __________________________ 2