UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

                                     ----

                                   FORM 10-K

(Mark One)

     [X]  ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
          EXCHANGE ACT OF 1934

          For the fiscal year ended:   December 31, 2002
                                       -----------------

                                      OR

     [ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
          SECURITIES EXCHANGE ACT OF 1934

          For the transition period from               to
                                         -------------    -------------

                     Commission file number: 333-74674-10
                                             ------------

                  CWMBS, Inc., Alternative Loan Trust 2002-6
              Mortgage Pass-Through Certificates, Series 2002-10
              --------------------------------------------------
            (Exact name of Registrant as specified in its charter)


          Delaware                                       95-4449516
-------------------------------            ------------------------------------
(State or other jurisdiction of            (IRS Employer Identification Number)
incorporation or organization)

c/o   Countrywide Home Loans Servicing LP
      4500 Park Granada
      Calabasas, California                                 91302
-----------------------------------------  ------------------------------------
(Address of principal executive offices)                 (Zip Code)

Registrant's telephone number, including area code:   (818) 225-3000
                                                      --------------

Securities registered pursuant to Section 12(b) of the Act:  None
                                                             ----

Securities registered pursuant to Section 12(g) of the Act:  None
                                                             ----


<PAGE>


Indicate by check mark whether the Registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
Registrant was required to file such reports), and (2) has been subject to
such filing requirements for the past 90 days. Yes  X   No
                                                   ---     ---

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K (Section 229.405 of this chapter) is not contained herein,
and will not be contained, to the best of Registrant's knowledge, in
definitive proxy or information statements incorporated by reference in Part
III of this Form 10-K or any amendment to this Form 10-K. [ ]

Indicate by check mark whether the registrant is an accelerated
filer (as defined in Rule 12b-2 of the Act.  Yes     No  X
                                                ---     ---

State the aggregate market value of the voting and non-voting
common equity held by non-affiliates of the Registrant:  Not applicable
                                                         --------------

Indicate the number of shares outstanding of each of the registrant's classes
of common stock, as of December 31, 2002:  Not applicable
                                           --------------


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<PAGE>


DOCUMENTS INCORPORATED BY REFERENCE

                                     None.

                               * * *


         This Annual Report on Form 10-K (the "Report") is filed with respect
to the trust fund entitled Alternative Loan Trust 2002-6 (the "Trust Fund")
formed pursuant to the pooling and servicing agreement dated as of May 1, 2002
(the "Pooling and Servicing Agreement") among CWMBS, Inc., as depositor (the
"Company"), Countrywide Home Loans, Inc., as (the "Seller), Countrywide Home
Loans Servicing LP, as master servicer (the "Master Servicer"), and The Bank
of New York, as trustee (the "Trustee"), for the issuance of CWMBS, Inc.,
Mortgage Pass-Through Certificates, Series 2002-10 (the "Certificates").
Certain information otherwise required to be included in this Report by the
Instructions to Form 10-K has been omitted in reliance on the relief granted
to the Company in CWMBS, Inc. (February 3, 1994) (the "Relief Letter").


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<PAGE>


                                    PART I


ITEM 1.  BUSINESS

         Not applicable.  See the Relief Letter.

ITEM 2.  PROPERTIES

         Not applicable.  See the Relief Letter.

ITEM 3.  LEGAL PROCEEDINGS

         There were no material pending legal proceedings relating to the
         Trust Fund to which any of the Trust Fund, the Trustee, the Master
         Servicer or the Company was a party or of which any of their
         respective properties was the subject during the fiscal year covered
         by this Report, nor is the Company aware of any such proceedings
         contemplated by governmental authorities.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

         No matter was submitted to a vote of Certificateholders, and
         no Certificateholder consent was solicited during the fiscal
         year covered by this Report.


                                      4
<PAGE>


                                    PART II


ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

         (a)  Market Information. There is no established public
              trading market for the Certificates.

         (b)  Holders.  As of December 31, 2002 there were less than 300
              holders of record of the Certificates.

         (c)  Dividends. Not applicable. See the Relief Letter.
              (Information as to distributions to
              Certificateholders is provided in the Registrant's
              monthly filings on Form 8-K.)

         (d)  Securities Authorized for Issuance Under Equity
              Compensation Plans. Not applicable.

         (e)  Item 701 of Regulation S-K. Not applicable. See the
              Relief Letter.

         (f)  Rule 463 of the Securities Act of 1933. Not
              applicable. See the Relief Letter.

ITEM 6.  SELECTED FINANCIAL DATA

         Not applicable.  See the Relief Letter.

ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
         RESULTS OF OPERATIONS

         Not applicable.  See the Relief Letter.

ITEM 7A  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

         Not applicable.

ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         Not applicable.  See the Relief Letter.

ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
         FINANCIAL DISCLOSURE

         None.


                                      5
<PAGE>


                                   PART III


ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         Not applicable.  See the Relief Letter.

ITEM 11. EXECUTIVE COMPENSATION

         Not applicable.  See the Relief Letter.

ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         Information required by Item 201(d) of Regulation S-K: Not
         applicable.

         Information required by Item 403 of Regulation S-K:

         (a) Not applicable. See the Relief Letter.

         (b) Not applicable. See the Relief Letter.

         (c) Not applicable. See the Relief Letter.

ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         Not applicable.  See the Relief Letter.

ITEM 14. CONTROLS AND PROCEDURES

         Not applicable. The Registrant is an Asset-Backed Issuer (as
         defined in Exchange Act Rules 13a-14(g) and 15d-14(g)) and
         is therefore not required to disclose information under Item
         307 of Regulation S-K. See paragraph (c) of Item 307 of
         Regulation S-K.


                                       6
<PAGE>


                                    PART IV


ITEM 15.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

          (a) (1) Pursuant to the Pooling and Servicing Agreement, the Master
                  Servicer is required (i) to deliver an annual statement as
                  to compliance with the provisions of the Pooling and
                  Servicing Agreement and certain other matters (the "Annual
                  Statement of the Master Servicer") and (ii) to cause a firm
                  of independent public accountants to deliver an annual
                  report as to compliance with the servicing provisions of the
                  Pooling and Servicing Agreement (the "Annual Report of the
                  Firm of Accountants"). The Annual Statement of the Master
                  Servicer is attached as Exhibit 99.1 to this Report. The
                  Annual Report of the Firm of Accountants is attached as
                  Exhibit 99.2 to this Report. See Relief Letter.

              (2) Not applicable.

              (3) The required exhibits are as follows:

                    o    Exhibit 3(i): Copy of Company's
                         Certificate of Incorporation (Filed
                         as an Exhibit to Registration
                         Statement on Form S-3 (File No.
                         33-63714)).

                    o    Exhibit 3(ii): Copy of Company's
                         By-laws (Filed as an Exhibit to
                         Registration Statement on Form S-3
                         (File No. 33-63714)).

                    o    Exhibit 4: Pooling and Servicing
                         Agreement (Filed as part of the
                         Registrant's Current Report on Form
                         8-K filed on August 20, 2002).

                    o    Exhibit 99.1: Annual Statement of the Master Servicer.

                    o    Exhibit 99.2: Annual Report of the Firm of Accountants.

                  (b) Current Reports on Form 8-K filed during the last
                  quarter ending December 31, 2002:


           Date of Current Report             Item Reported
           ----------------------             -------------

           September 25, 2002        Monthly report sent to certificateholders
                                     with the September 2002 distribution

           October 25, 2002          Monthly report sent to certificateholders


                                      7
<PAGE>


                                     with the October 2002 distribution

           November 25, 2002         Monthly report sent to certificateholders
                                     with the November 2002 distribution


           (c)  See subparagraph (a)(3) above.

           (d)  Not applicable. See the Relief Letter.


                                      8
<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the Registrant has duly caused this Report to be signed
on its behalf by the undersigned, thereunto duly authorized.

                          CWMBS, INC.,
                          ALTERNATIVE LOAN TRUST, 2002-6, MORTGAGE
                          PASS-THROUGH CERTIFICATES, SERIES 2002-10

                          By:  Countrywide Home Loans Servicing LP,
                               as Master Servicer*

                          By:  Countrywide GP, Inc.


                          By:  /s/ Joseph M. Candelario
                               ----------------------------
                               Name:   Joseph M. Candelario
                               Title:  First Vice President

                          Date:  March 27, 2003

-----------

*     This Report is being filed by the Master Servicer on behalf of the Trust
      Fund. The Trust Fund does not have any officers or directors.


                                      9
<PAGE>


                                 CERTIFICATION
                                 -------------

       I, Richard DeLeo, certify that:

       1. I have reviewed this annual report on Form 10-K, and all
       reports on Form 8-K containing distribution and servicing reports
       filed in respect of periods included in the year covered by this
       annual report, of CWMBS, Inc., Alternative Loan Trust 2002-6, Mortgage
       Pass-Through Certificates, Series 2002-10;

       2. Based on my knowledge, the information in these reports, taken
       as a whole, does not contain any untrue statement of a material
       fact or omit to state a material fact necessary to make the
       statements made, in light of the circumstances under which such
       statements were made, not misleading as of the last day of the
       period covered by this annual report;

       3. Based on my knowledge, the distribution or servicing
       information required to be provided to the trustee by the master
       servicer under the pooling and servicing, or similar, agreement,
       for inclusion in these reports is included in these reports;

       4. I am responsible for reviewing the activities performed by the
       master servicer under the pooling and servicing, or similar,
       agreement and based upon my knowledge and the annual compliance
       review required under that agreement, and except as disclosed in
       the reports, the master servicer has fulfilled its obligations
       under that agreement; and

       5. The reports disclose all significant deficiencies relating to
       the master servicer's compliance with the minimum servicing
       standards based upon the report provided by an independent public
       accountant, after conducting a review in compliance with the
       Uniform Single Attestation Program for Mortgage Bankers or
       similar procedure, as set forth in the pooling and servicing, or
       similar, agreement, that is included in these reports.

       In giving the certifications above, I have reasonably relied on
       information provided to me by the following unaffiliated parties:
       The Bank of New York, as Trustee.


       Date: March 27, 2003


                                                 /s/ Richard De Leo
                                                 ------------------
                                                 Richard De Leo
                                                 Managing Director


                                      10
<PAGE>


         SUPPLEMENTAL INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT
TO SECTION 15(d) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED
SECURITIES PURSUANT TO SECTION 12 OF THE ACT.

         No such annual report, proxy statement, form of proxy or other
soliciting material has been sent to Certificateholders. See the Relief
Letter.


                                      11
<PAGE>


<TABLE>
<CAPTION>
                                 EXHIBIT INDEX

                                                                                   Sequential
Exhibit Document                                                                  Page Number
------- --------                                                                  -----------
<S>                                                                               <C>
3(i)       Company's Certificate of Incorporation (Filed as an Exhibit to
           Registration Statement on Form S-3 (File No. 33-63714)) *

3(ii)      Company's By-laws (Filed as an Exhibit to Registration Statement on
           Form S-3 (File No. 33-63714))  *

4          Pooling and Servicing Agreement (Filed as part of the Company's
           Current Report on Form 8-K filed on August 20, 2002) *

99.1       Annual Statement of the Master Servicer.......................................13

99.2       Annual Report of the Firm of Accountants......................................15

</TABLE>









-----------------

*     Incorporated herein by reference.


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