CAREFUSION CORPORATION EXECUTIVE CHANGE IN CONTROL SEVERANCE PLAN

Exhibit 10.73

CAREFUSION CORPORATION

EXECUTIVE CHANGE IN CONTROL SEVERANCE PLAN

(Effective as of August 31, 2009)

The purpose of the Plan is to assure the Company and its Affiliates of the continued dedication, loyalty, and service of, and the availability of objective advice and counsel from, key executives of the Company in the event of a Change in Control. The Plan is intended to be a “top-hat” plan (i.e., an unfunded deferred compensation plan maintained for a select group of management or highly-compensated employees) under ERISA sections 201(2), 301(a)(3), and 401(a)(1).

As used herein, the following definitions shall apply:

(a) “ Affiliate ” means any entity, whether now or hereafter existing, which controls, is controlled by, or is under common control with, the Company (including, but not limited to, joint ventures, limited liability companies and partnerships), as determined by the Board.

(b) “ Base Salary ” means a Participant’s annual rate of base salary in effect as of the date of termination of employment, determined without regard to any reduction thereof that constitutes Good Reason under the Plan.

(c) “ Board ” means the Board of Directors of the Company.

(d) “ Cause ” means:

(i) the willful and continued failure of the Participant to perform substantially the Participant’s duties with the Company (other than any such failure resulting from incapacity due to physical or mental illness), as determined by the Board no earlier than 30 days after a written demand for substantial performance is delivered to the Participant, which specifically identifies the manner in which the Company believes that the Participant has willfully and continuously failed to perform substantially the Participant’s duties with the Company;

(ii) the willful engaging by the Participant in illegal conduct or gross misconduct which is materially and demonstrably injurious to the Company or its affiliates;

(iii) conviction of a felony; or

(iv) a material breach of the restrictive covenants in the Plan subject to the cure provisions of Section 6(b).

For purposes of this definition, no act or failure to act on the part of the Participant shall be considered “willful” unless it is done, or omitted to be done, by the Participant in bad faith or without reasonable belief that the Participant’s act or omission was in the best interests of the Company.

(e) “ Change in Control ” means any of the following:

(i) the acquisition by any individual, entity or group (within the meaning of section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as amended) (a “ Person ”) of beneficial ownership (within the meaning of Rule 13d-3 promulgated under the Securities Exchange Act of 1934, as amended) of twenty-five percent (25%) or more of either (x) the then outstanding Common Stock of the Company (the “ Outstanding Company Common Stock ”), or (y) the combined voting power of the then outstanding voting securities of the Company entitled to vote generally in the election of Directors (the “ Outstanding Company Voting Securities ”); provided , however , that for purposes of this Section 2(e)(i), the following acquisitions shall not constitute a Change in Control: (A) any acquisition directly from the Company or any corporation controlled by the Company; (B) any acquisition by the Company or any corporation controlled by the Company; (C) any acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any corporation controlled by the Company; or (D) any acquisition by any corporation that is a Non-Control Acquisition (as defined in Section 2(e)(iii)); or

(ii) individuals who, as of the effective date of the Plan, constitute the Board (the “ Incumbent Board ”) cease for any reason to constitute at least a majority of the Board; provided , however , that any individual becoming a Director subsequent to the effective date whose election, or nomination for election by the Company’s stockholders, was approved by a vote of at least a majority of the Directors then comprising the Incumbent Board shall be considered as though such individual were a member of the Incumbent Board, but excluding, for this purpose, any such individual whose initial assumption of office occurs as a result of an actual or threatened election contest with respect to the election or removal of directors or other actual or threatened solicitation of proxies or consents by or on behalf of a Person other than the Board; or

(iii) consummation of a reorganization, merger or consolidation or sale or other disposition of all or substantially all of the assets of the Company or the acquisition by the Company of assets or shares of another corporation (a “ Business Combination ”), unless, such Business Combination is a Non-Control Acquisition. A “ Non-Control Acquisition ” shall mean a Business Combination where: (x) all or substantially all of the individuals and entities who were the beneficial owners, respectively, of the Outstanding Company Common Stock and Outstanding Company Voting Securities immediately prior to such Business Combination beneficially own, directly or indirectly, more than fifty percent (50%) of, respectively, the then outstanding shares of common stock and the combined voting power of the then outstanding voting securities entitled to vote generally in the election of directors, as the case may be, of the corporation resulting from such Business Combination (including, without limitation, a corporation which as a result of such transaction owns the Company or all or substantially all of the Company’s assets either directly or through one or more subsidiaries) in substantially the same proportions as their ownership immediately prior to such Business Combination of the Outstanding Company Common Stock and Outstanding Company Voting Securities, as the case may be; (y) no Person (excluding any employee benefit plan (or related trust) of the Company or

2

such corporation resulting from such Business Combination) beneficially owns, directly or indirectly, twenty-five percent (25%) or more of, respectively, the then outstanding shares of common stock of the corporation resulting from such Business Combination or the combined voting power of the then outstanding voting securities of such corporation except to the extent that such ownership existed prior to the Business Combination (including any ownership that existed in the Company or the company being acquired, if any); and (z) at least a majority of the members of the board of directors of the corporation resulting from such Business Combination were members of the Incumbent Board at the time of the execution of the initial agreement, or of the action of the Board, providing for such Business Combination; or

(iv) approval by the stockholders of the Company of a complete liquidation or dissolution of the Company.

(f) “ Code ” means the Internal Revenue Code of 1986, as amended, and the regulations and Treasury guidance promulgated under the Code.

(g) “ Company ” means CareFusion Corporation, a Delaware corporation, or, except as utilized in the definition of Change in Control, its successor.

(h) “ Change in Control Date ” means the date on which a Change in Control becomes effective.

(i) “ Director ” means a member of the Board.

(j) “ Disability ,” unless the Board specifies otherwise, has the meaning specified in the Company’s long-term disability plan applicable to the Participant at the time of Disability.

(k) “ ERISA ” means the Employee Retirement Income Security Act of 1974, as amended, and the regulations and guidance promulgated under it.

(l) “ Good Reason ” means

(i) a material reduction of the Participant’s base compensation (including Base Salary or Target Bonus);

(ii) a material diminution in the Participant’s authority, duties, or responsibilities;

(iii) a material diminution in the authority, duties, or responsibilities of the supervisor to whom the Participant is required to report;

(iv) a material diminution in the budget over which the Participant retains authority; or

(v) material change in the geographic location at which the Participant must perform services, where a change of at least 35 miles or to another country will be deemed material.

3

The Participant must provide notice to the Company of the existence of one of the “Good Reason” conditions within 90 days after the initial existence of the “Good Reason” condition, upon the notice of which the Company shall have 30 days to remedy the condition and not be required to pay any amount of severance. In all cases, for the Participant to receive any severance benefit, the Participant’s termination must occur no later than two years following the initial existence of one or more of the “Good Reason” conditions arising without the consent of the Participant.

(m) “ Participant ” means an individual designated by the Board (or an authorized officer of the Company) as eligible to participate in the Plan pursuant to Section 4(a) who executes and returns to the Company a Participation Agreement in accordance with Section 4(b) of the Plan.

(n) “ Participation Agreement ” means the agreement between the Participant and the Company pursuant to Section 4(b).

(o) “ Plan ” means this Executive Change in Control Severance Plan.

(p) “ Prorated Target Bonus ” means the Target Bonus multiplied by a fraction, the numerator of which is the number of whole and partial months (rounded up) from the date of termination of employment until the end of the fiscal year of the Company, and the denominator of which is 12.

(q) “ Restricted Period ” means the period beginning on the date on which an eligible executive becomes a Participant under Section 4(b) and ending on the last day of the 24-month period after the date of termination of employment.

(r) “ Target Bonus ” means the Participant’s target bonus for the fiscal year of the Company in which the termination of employment occurs, determined without regard to any reduction thereof that constitutes Good Reason under the Plan.

(s) “ Tier I Executive ” means the Chief Executive Officer of the Company.

(t) “ Tier II Executive ” has the meaning given that term in Section 4(a).

(u) “ Tier III Executive ” has the meaning given that term in Section 4(a).

(a) The Company shall act as the plan administrator and the “named fiduciary” of the Plan for purposes of ERISA. Prior to a Change in Control, the Board has sole and absolute discretion and authority to administer the Plan on behalf of the Company, including the discretionary power and authority to:

(i) adopt such rules as it deems advisable in connection with the administration of the Plan, and to construe, interpret, apply and enforce the Plan and any such rules and to remedy ambiguities, errors or omissions in the Plan;

4

(ii) determine eligibility pursuant to Section 4(a), the terms and conditions of individual Participation Agreements pursuant to Section 4(a), and any other terms of the Plan applicable to Participants, including, but not limited to, the Restricted Period, amount and method of payment, and a Participant’s continued entitlement to benefits under the Plan; the Board’s determinations will be conclusive and binding on all parties affected by its determinations;

(iii) act under the Plan on a case-by-case basis; the Board’s decisions under the Plan need not be uniform with respect to similarly situated participants; and

(iv) delegate its authority under the Plan with respect to Tier II and Tier III Executives to any committee of the Board, and with respect to Tier II Executives who are not subject to Section 16 of the Securities Exchange Act of 1934 and Tier III Executives to any officer of the Company.

(b) If any person with administrative authority becomes eligible or makes a claim for Plan benefits, he or she will have no authority with respect to any matter specifically affecting his or her individual interest under the Plan and the Company will designate another person to exercise such authority.

(c) Notwithstanding anything in the Plan to the contrary, after a Change in Control, neither the Board nor any other person shall have discretionary authority in the administration of the Plan, and any court or tribunal that adjudicates any dispute, controversy, or claim in connection with benefits under Section 5 will apply a de novo standard of review to any determinations made by the Board or the Company. Such de novo standard shall apply notwithstanding the grant of full discretion hereunder to the Board or any person or characterization of any decision by the Board or by such person as final, binding or conclusive on any party.

(a) Eligibility . The Board, in its sole discretion, may from time to time designate key executives of the Company who are eligible to participate in the Plan. The Chief Executive Officer of the Company shall be designed as a Tier I Executive and other eligible executives shall be designated by the Board as either Tier II or Tier III Executives.

(b) Participation; Execution of Participation Agreement . Each eligible executive designated by the Board pursuant to Section 4(a) shall become a Participant in the Plan only upon execution of a Participation Agreement in the form, or substantially the form, attached hereto as Appendix A , subject to additional terms as the Board may specify. Each executed Participation Agreement shall constitute the Participant’s agreement to the terms and conditions of participation in the Plan.

(a) Entitlement to Severance Benefits . In the event a Participant’s employment with the Company is terminated within 24 months after the Change in Control Date either (i) by the Company for reasons other than Cause, death, or Disability, or (ii) by the Participant for Good

5

Reason, the Company shall make payments and provide benefits to the Participant as specified under Sections 5(b) through 5(e), subject to the Participant’s satisfaction of the requirements of Section 6(a) (regarding waiver and release of claims) and Section 6(b) (regarding restrictive covenants). In addition, if a Participant’s employment with the Company had terminated before a Change in Control that is a “change in control event” under Treasury regulation section 1.409A-3(i)(5), and if it is reasonably demonstrated by the Participant to the Board that his or her termination of employment either was at the request of a third party that had taken steps reasonably calculated to effect the Change in Control or otherwise arose in connection with or in anticipation of the Change in Control, then, for purposes of determining entitlement to severance benefits under the Plan, the Participant’s employment is deemed to have terminated on the Change in Control Date.

(b) Lump-Sum Cash Payment . The Company shall pay to the Participant a lump-sum cash payment equal to the following applicable amount:

(i) Tier I Executive : the sum of (1) two times the sum of Base Salary plus Target Bonus and (2) the Prorated Target Bonus.

(ii) Tier II Executives : for Tier II Executives with a position of senior vice president or higher, the sum of (1) two times the sum of Base Salary plus Target Bonus and (2) the Prorated Target Bonus, and for all other Tier II Executives, two times the sum of Base Salary plus Target Bonus.

(iii) Tier III Executives : an amount to be determined at the discretion of the Board, but in no event less than four months’ Base Salary or more than one times the sum of Base Salary plus Target Bonus.

The lump-sum cash payment shall be made no later three business days following the expiration of any period during which a Participant may revoke the waiver and release of claims executed pursuant to Section 6(a), so long as that waiver and release becomes effective no later than 60 days after the Participant’s termination of employment (or the Change in Control Date, for a Participant whose termination of employment is deemed to occur on the Change in Control Date). Notwithstanding the foregoing, if the period during which a Participant has discretion to execute or revoke the waiver and release of claims straddles two taxable years of the Participant, then the Company shall make the payment in the second of such taxable years, regardless of which taxable year the Participant actually delivers the executed waiver and release to the Company.

(c) Health Benefit Continuation . The Company shall pay the premium for COBRA coverage, if elected by the Participant and his eligible dependents, upon loss of coverage under the Company’s group health plan for active employees of the Company due to termination of employment, until the earlier of (i) the date that the Participant becomes eligible for coverage under another group health plan, or (ii) for Tier I and Tier II Executives, the end of the 18-month maximum COBRA coverage period or, for Tier III Executives, the end of the 12-month period beginning on the date of termination of employment. For Tier I and Tier II Executives who do not become eligible for coverage under another group health plan by the end of the 18-month maximum COBRA coverage period, the Company shall continue to provide coverage under its

6

group health plan for active employees until the earlier of (x) the date that the Participant becomes eligible for coverage under another group health plan, or (y) for Tier I Executives, the end of an additional 18-month period or, for Tier II Executives, the end of an additional six- month period. The Company includes as gross taxable income to the Participant the amount of the COBRA premium during the period of COBRA coverage and the fair market value of the continued coverage beyond the end of the COBRA period, if applicable.

(d) Outplacement Assistance . The Company shall pay the cost of providing the Participant with outplacement services for six months, so long as the services are (i) used by the Participant within six months following the date of termination of employment; and (ii) provided by a recognized outplacement provider. Payment shall be made by the Company directly to the service provider promptly following the provision of the outplacement services and the presentation to the Company of documentation of the provision of the services, and in all events by no later than the first anniversary of the date of termination of employment.

(e) Code Section 280G Excise Tax . Only Participants who are Tier I Executives are eligible to receive the following benefit:

(i) In the event that any payment or benefit received or to be received by a Participant pursuant to the terms of the Plan (the “ Plan Payments ”) or in connection with the Participant’s termination of employment or contingent upon a Change in Control pursuant to any plan or arrangement or other agreement with the Company (or any Affiliate) (“ Other Payments ” and, together with the Plan Payments, the “ Payments ”) would be subject to the excise tax (the “ Excise Tax ”) imposed by Code section 4999, as determined as provided below, the Company shall pay to the Participant, at the time specified in Section 5(e)(iv) below, an additional amount such that the net amount retained by the Participant, after deduction of all amounts required to be paid upon the payment provided for by Sections 5(e)(i) through 5(e)(iii), and any interest, penalties or additions to tax payable by the Participant with respect thereto, shall be equal to the total present value of the Excise Taxes imposed upon the Payments (the “ Gross-Up Payment ”).

(ii) For purposes of determining the Gross-Up Payment, whether any of the Payments will be subject to the Excise Tax and the amounts of such Excise Tax, (1) the total amount of the Payments shall be treated as “parachute payments” within the meaning of Code section 280G(b)(2), and all “excess parachute payments” within the meaning of Code section 280G(b)(1) shall be treated as subject to the Excise Tax, except to the extent that, in the opinion of independent tax counsel selected by the Company’s independent auditors and reasonably acceptable to the Participant (“ Tax Counsel ”), a Payment (in whole or in part) does not constitute a “parachute payment” within the meaning of Code section 280G(b)(2), or such “excess parachute payments” (in whole or in part) are not subject to the Excise Tax, (2) the amount of the Payments that shall be treated as subject to the Excise Tax shall be equal to the lesser of (A) the total amount of the Payments or (B) the amount of “excess parachute payments” within the meaning of Code section 280G(b)(1) (after applying clause (1) hereof), and (3) the value of any noncash benefits or any deferred payment or benefit shall be determined by Tax Counsel in accordance with the principles of Code sections 280G(d)(3) and (4). For purposes of determining the amount of the Gross-Up Payment, the Participant shall be deemed to pay federal income tax at the highest marginal rates of federal income taxation applicable to individuals in the calendar year in which the Gross-Up Payment is to be made and state and local income taxes

7

at the highest effective rates of taxation applicable to individuals as are in effect in the state and locality of the Participant’s residence in the calendar year in which the Gross-Up Payment is to be made, net of the maximum reduction in federal income taxes that can be obtained from deduction of such state and local taxes, taking into account any limitations applicable to individuals subject to federal income tax at the highest marginal rates.

(iii) If the Tax Counsel determines that an Excise Tax is payable, the Company shall pay the required Gross-Up Payment to, or for the benefit of, the Participant within the time specified in Section 5(e)(iv). If the Tax Counsel determines that no Excise Tax is payable by the Participant, it shall, at the same time as it makes such determination, furnish the Participant with an opinion that he has substantial authority not to report any Excise Tax on his/her federal, state, local income or other tax return. Any determination by the Tax Counsel as to the amount of the Gross-Up Payment shall be binding upon the Company and the Participant absent a contrary determination by the Internal Revenue Service or a court of competent jurisdiction.

(iv) The Gross-Up Payments provided for in Sections 5(e)(i) through 5(e)(iii) hereof shall be made upon the earlier of (1) the payment to the Participant of any Plan Payment or Other Payment or (2) the imposition upon the Participant or payment by the Participant of any Excise Tax.

(v) The Participant shall notify the Company in writing of any claim by the Internal Revenue Service that, if successful, would require the payment by the Company of a Gross-Up Payment. Such notification shall be given as soon as practicable but no later than 10 business days after the Participant is informed in writing of such claim and shall apprise the Company of the nature of such claim and the date on which such claim is requested to be paid. The Participant shall not pay such claim prior to the expiration of the 30-day period following the date on which the Participant gives such notice to the Company (or such shorter period ending on the date that any payment of taxes with respect to such claim is due). If the Company notifies the Participant in writing prior to the expiration of such period that it desires to contest such claim, the Participant shall:

(1) give the Company any information reasonably requested by the Company relating to such claim;

(2) take such action in connection with contesting such claim as the Company shall reasonably request in writing from time to time, including, without limitation, accepting legal representation with respect to such claim by an attorney reasonably selected by the Company and reasonably satisfactory to the Participant;

(3) cooperate with the Company in good faith in order to effectively contest such claim; and

(4) permit the Company to participate in any proceedings relating to such claim;

provided , however , that the Company shall bear and pay directly all costs and expenses (including, but not limited to, additional interest and penalties and related legal, consulting or other similar fees) incurred in connection with such contest and shall indemnify and hold the Participant harmless, on an after-tax basis, for any Excise Tax or other tax (including interest and penalties with respect thereto) imposed as a result of such representation and payment of costs and expenses.

8

(vi) The Company shall control all proceedings taken in connection with such contest and, at its sole option, may pursue or forego any and all administrative appeals, proceedings, hearings and conferences with the taxing authority in respect of such claim and may, at its sole option, either direct the Participant to pay the tax claimed and sue for a refund or contest the claim in any permissible manner, and the Participant agrees to prosecute such contest to a determination before any administrative tribunal, in a court of initial jurisdiction and in one or more appellate courts, as the Company shall determine; provided , however , that if the Company directs the Participant to pay such claim and sue for a refund, the Company shall advance the amount of such payment to the Participant on an interest-free basis, and shall indemnify and hold the Participant harmless, on an after-tax basis, from any Excise Tax or other tax (including interest or penalties with respect thereto) imposed with respect to such advance or with respect to any imputed income with respect to such advance; and provided , further , that if the Participant is required to extend the statute of limitations to enable the Company to contest such claim, the Participant may limit this extension solely to such contested amount. The Company’s control of the contest shall be limited to issues with respect to which a Gross-Up Payment would be payable hereunder and the Participant shall be entitled to settle or contest, as the case may be, any other issue raised by the Internal Revenue Service or any other taxing authority. In addition, no position may be taken nor any final resolution be agreed to by the Company without the Participant’s consent if such position or resolution could reasonably be expected to adversely affect the Participant (including any other tax position of the Participant unrelated to the matters covered hereby).

(vii) As a result of the uncertainty in the application of Code section 4999 at the time of the initial determination by the Company or the Tax Counsel hereunder, it is possible that Gross-Up Payments which will not have been made by the Company should have been made (“ Underpayment ”), consistent with the calculations required to be made hereunder. In the event that the Company exhausts its remedies and the Participant thereafter is required to pay to the Internal Revenue Service an additional amount in respect of any Excise Tax, the Company or the Tax Counsel shall determine the amount of the Underpayment that has occurred and any such Underpayment shall promptly be paid by the Company to or for the benefit of the Participant.

(viii) If, after the receipt by the Participant of the Gross-Up Payment or an amount advanced by the Company in connection with the contest of an Excise Tax claim, the Participant beco