SECURITIES AND EXCHANGE COMMISSION

                            Washington, D.C. 20549

                                   FORM 8-K

                                CURRENT REPORT

                    Pursuant to Section 13 or 15(d) of the

                        Securities Exchange Act of 1934

        Date of Report (Date of earliest event reported): April 25, 2004

                                      BOA

                                  (Depositor)

    (Issuer in respect of Mortgage Pass-Through Certificates, Series 2002-4)

                (Exact name of registrant as specified in charter)

North Carolina                333-74544-10                  02-0620011/0016
(State or other               (Commission File No.)         (I.R.S. Employer
    jurisdiction of                                         Identification No.)
    organization)



101 N. Tryon St., Charlotte, NC                             28255
(Address of principal executive offices)                    (Zip Code)


Registrant's Telephone Number, including area code: 704-387-2111

                                 Not Applicable
              (Former name, former address and former fiscal year,
                          if changed since last report)




Item 5.  Other Events

                                      BOA
                       Mortgage Pass-Through Certificates
                                 Series 2002-4

On April 25, 2004, The Bank of New York, as Trustee for BOA, Mortgage
Pass-Through Certificates Series 2002-4, made a monthly distribution to
Certificate holders of principal and/or interest pursuant to the Pooling and
Servicing Agreement, dated as of April 1, 2002, among BOA as Depositor, Bank of
America Mortgage Securities, Inc., Seller and Master Servicer and The Bank of
New York, as Trustee.

Item 7.  Financial Statements and Exhibits

                    (c) Exhibits

Exhibit No.                               Description

99                  Report to Holders of BOA, Mortgage Pass-Through Certificates
                    Series 2002-4 relating to the distribution date of April 25,
                    2004  prepared by The Bank of New York, as Trustee under the
                    Pooling and Servicing Agreement dated as of April 1, 2002.







                                   SIGNATURES

Pursuant  to the  requirements  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.

Dated: April 25, 2004


                                      BOA


                          By: /s/ Diane Pickett
                              ------------------------------
                          Name:   Diane Pickett
                                  Vice President
                                  The Bank of New York,
                                  as Trustee







                                 EXHIBIT INDEX



Exhibit


99                  Monthly Remittance Statement dated April 25, 2004


                             Payment Date: 04/25/04


          ------------------------------------------------------------
                   Bank of America Mortgage Securities, Inc.
               Mortgage Pass-Through Certificates, Series 2002-4
                      Bank of America, NA, Master Servicer
          ------------------------------------------------------------



Class Information                                Current Payment Information

- ----------------------------------------------------------------------------------------------------------------------------------
                                 Beginning       Pass Thru     Principal       Interest      Total           Principal  Interest
Type       Class Code   Name     Cert. Bal.      Rate          Dist. Amt.      Dist. Amt.    Dist.           Losses     Shortfalls
- ----------------------------------------------------------------------------------------------------------------------------------
                                                                                             
Senior                  1-A-1               0.00    5.750000%             0.00          0.00            0.00       0.00       0.00
                        1-A-2       3,512,486.62    5.750000%     3,512,486.62     16,678.92    3,529,165.55       0.00     151.74
                        1-A-3      36,228,000.00    6.500000%     3,250,073.37    194,465.79    3,444,539.17       0.00   1,769.21
                        1-A-4          26,453.09    6.500000%         5,205.71        142.00        5,347.70       0.00       1.29
                        1-A-5               0.00    7.000000%             0.00          0.00            0.00       0.00       0.00
                        1-A-6               0.00    7.000000%             0.00          0.00            0.00       0.00       0.00
                        1-A-7               0.00    7.000000%             0.00          0.00            0.00       0.00       0.00
                        1-A-8               0.00    7.000000%             0.00          0.00            0.00       0.00       0.00
                        1-A-9               0.00    7.000000%             0.00          0.00            0.00       0.00       0.00
                        1-A-10      1,317,182.47    1.540000%     1,317,182.47      1,675.14    1,318,857.61       0.00      15.24
                        1-A-11      1,317,182.47    6.960000%             0.00      7,570.78        7,570.78       0.00      68.88
                        1-A-12              0.00    0.000000%             0.00          0.00            0.00       0.00       0.00
                        1-A-13              0.00    6.500000%             0.00          0.00            0.00       0.00       0.00
Residual                1-A-R               0.00    6.500000%             0.00          0.00            0.00       0.00       0.00
                        1-A-LR              0.00    6.500000%             0.00          0.00            0.00       0.00       0.00
                        1-A-WIO    36,384,037.29    0.275532%             0.00      8,278.81        8,278.81       0.00      75.32
                        2-A-1      10,701,993.49    6.000000%       565,505.93     53,509.97      619,015.90       0.00       0.00
                        2-A-2               0.00    6.000000%             0.00          0.00            0.00       0.00       0.00
                        2-A-3               0.00    6.000000%             0.00          0.00            0.00       0.00       0.00
                        2-A-WIO    11,986,345.12    0.389917%             0.00      3,894.73        3,894.73       0.00       0.00
                        1-A-PO        235,186.23    0.000000%        72,462.81          0.00       72,462.81       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
Subordinate             1-B-1       3,673,309.97    6.500000%         3,913.95     19,717.71       23,631.65       0.00     179.39
                        1-B-2       1,762,758.13    6.500000%         1,878.24      9,462.19       11,340.42       0.00      86.08
                        1-B-3       1,028,683.39    6.500000%         1,096.07      5,521.80        6,617.87       0.00      50.24
                        1-B-4         587,259.79    6.500000%           625.73      3,152.31        3,778.04       0.00      28.68
                        1-B-5         441,423.61    6.500000%           470.34      2,369.49        2,839.83       0.00      21.56
                        1-B-6         587,891.84    6.500000%           626.40      3,155.70        3,782.10       0.00      28.71
                        2-B-1         642,058.25    6.000000%         2,958.49      3,210.29        6,168.78       0.00       0.00
                        2-B-2         228,653.22    6.000000%         1,053.59      1,143.27        2,196.86       0.00       0.00
                        2-B-3         138,106.55    6.000000%           636.37        690.53        1,326.90       0.00       0.00
                        2-B-4          91,461.29    6.000000%           421.44        457.31          878.74       0.00       0.00
                        2-B-5          91,461.30    6.000000%           421.44        457.31          878.74       0.00       0.00
                        2-B-6          92,611.37    6.000000%           426.73        463.06          889.79       0.00       0.00
- ----------------------------------------------------------------------------------------------------------------------------------
- ----------------------------------------------------------------------------------------------------------------------------------
Totals          -        -         61,386,980.60     -            8,737,445.69    336,017.10    9,073,462.80     -        2,476.33
- ----------------------------------------------------------------------------------------------------------------------------------
Class Information

- --------------------------------------------------------------------------------
                                             Ending Cert.          Unpaid
Type             Class Code     Name         Notional Bal.         Interest
- --------------------------------------------------------------------------------
Senior                          1-A-1               0.00              0.00
                                1-A-2               0.00            151.74
                                1-A-3      32,977,926.63          1,769.21
                                1-A-4          21,247.39              1.29
                                1-A-5               0.00              0.00
                                1-A-6               0.00              0.00
                                1-A-7               0.00              0.00
                                1-A-8               0.00              0.00
                                1-A-9               0.00              0.00
                                1-A-10              0.00             15.24
                                1-A-11              0.00             68.88
                                1-A-12              0.00              0.00
                                1-A-13              0.00              0.00
Residual                        1-A-R               0.00              0.00
                                1-A-LR              0.00              0.00
                                1-A-WIO    30,558,719.80             75.32
                                2-A-1      10,136,487.56              0.00
                                2-A-2               0.00              0.00
                                2-A-3               0.00              0.00
                                2-A-WIO    11,414,921.13              0.00
                                1-A-PO        162,723.42              0.00
- --------------------------------------------------------------------------------
Subordinate                     1-B-1       3,669,396.02            179.39
                                1-B-2       1,760,879.89             86.08
                                1-B-3       1,027,587.32             50.24
                                1-B-4         586,634.06             28.68
                                1-B-5         440,953.27             21.56
                                1-B-6         587,265.44             28.71
                                2-B-1         639,099.77              0.00
                                2-B-2         227,599.63              0.00
                                2-B-3         137,470.18              0.00
                                2-B-4          91,039.85              0.00
                                2-B-5          91,039.86              0.00
                                2-B-6          92,184.63              0.00
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
Totals            -              -         52,649,534.91          2,476.33
- --------------------------------------------------------------------------------



                             Payment Date: 04/25/04


          ------------------------------------------------------------
                   Bank of America Mortgage Securities, Inc.
               Mortgage Pass-Through Certificates, Series 2002-4
                      Bank of America, NA, Master Servicer
          ------------------------------------------------------------



Class Information                                Current Payment Information

                                                      Factors per $1,000

- ------------------------------------------------------------------------------------------------------------------------
                                   Beginning     Pass Thru    CUSIP       Principal     Interest    Ending Cert./
Type        Class Code    Name   Cert. Bal.(Face)  Rate       Numbers       Dist.         Dist.     Notional Bal.
- ------------------------------------------------------------------------------------------------------------------------
                                                                            
- ------------------------------------------------------------------------------------------------------------------------
Senior                     1-A-1           0.00     5.750000% 06050HFT0     0.000000      0.000000      0.000000
                           1-A-2   3,512,486.62     5.750000% 06050HFU7    77.571961      0.368348      0.000000
                           1-A-3  36,228,000.00     6.500000% 06050HFV5    89.711642      5.367831    910.288358
                           1-A-4      26,453.09     6.500000% 06050HFW3    27.763768      0.757311    113.319394
                           1-A-5           0.00     7.000000% 06050HFX1     0.000000      0.000000      0.000000
                           1-A-6           0.00     7.000000% 06050HFY9     0.000000      0.000000      0.000000
                           1-A-7           0.00     7.000000% 06050HFZ6     0.000000      0.000000      0.000000
                           1-A-8           0.00     7.000000% 06050HGA0     0.000000      0.000000      0.000000
                           1-A-9           0.00     7.000000% 06050HGB8     0.000000      0.000000      0.000000
                           1-A-10  1,317,182.47     1.540000% 06050HGC6    34.913859      0.044402      0.000000
                           1-A-11  1,317,182.47     6.960000% 06050HGD4     0.000000      0.200675      0.000000
                           1-A-12          0.00     0.000000% 06050HGE2     0.000000      0.000000      0.000000
                           1-A-13          0.00     6.500000% 06050HGF9     0.000000      0.000000      0.000000
Residual                   1-A-R           0.00     6.500000% 06050HGG7     0.000000      0.000000      0.000000
                           1-A-LR          0.00     6.500000% 06050HGH5     0.000000      0.000000      0.000000
                           1-A-WIO 36,384,037.29     0.275532% 06050HGJ1     0.000000      0.036044    133.046697
                           2-A-1  10,701,993.49     6.000000% 06050HGK8    28.275296      2.675498    506.824378
                           2-A-2           0.00     6.000000% 06050HGL6     0.000000      0.000000      0.000000
                           2-A-3           0.00     6.000000% 06050HGM4     0.000000      0.000000      0.000000
                           2-A-WIO 11,986,345.12     0.389917% 06050HGN2     0.000000      0.038947    114.149475
                           1-A-PO    235,186.23     0.000000% 06050HGP7    93.108658      0.000000    209.085998
- ------------------------------------------------------------------------------------------------------------------------
Subordinate                1-B-1   3,673,309.97     6.500000% 06050HGQ5     1.042885      5.253852    977.723427
                           1-B-2   1,762,758.13     6.500000% 06050HGR3     1.042885      5.253852    977.723427
                           1-B-3   1,028,683.39     6.500000% 06050HGS1     1.042885      5.253852    977.723427
                           1-B-4     587,259.79     6.500000% 06050HGY8     1.042885      5.253852    977.723427
                           1-B-5     441,423.61     6.500000% 06050HGZ5     1.042885      5.253852    977.723427
                           1-B-6     587,891.84     6.500000% 06050HHA9     1.042877      5.253853    977.723617
                           2-B-1     642,058.25     6.000000% 06050HGT9     4.214370      4.573064    910.398526
                           2-B-2     228,653.22     6.000000% 06050HGU6     4.214370      4.573064    910.398526
                           2-B-3     138,106.55     6.000000% 06050HGV4     4.214370      4.573065    910.398550
                           2-B-4      91,461.29     6.000000% 06050HHB7     4.214370      4.573064    910.398518
                           2-B-5      91,461.30     6.000000% 06050HHC5     4.214370      4.573065    910.398610
                           2-B-6      92,611.37     6.000000% 06050HHD3     4.214355      4.573080    910.401677
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------
Totals       -             -      61,386,980.60       -            -           -             -           -
- ------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------





          ------------------------------------------------------------
                   Bank of America Mortgage Securities, Inc.
               Mortgage Pass-Through Certificates, Series 2002-4
                      Bank of America, NA, Master Servicer
          ------------------------------------------------------------

- --------------------------------------------------------------------------------
                             COLLATERAL INFORMATION
- --------------------------------------------------------------------------------

                                                            Total
                                                            -----
Prin balance        41,234,613.31    11,414,921.13    52,649,534.44
Loan count                     92               26              118
Avg loan rate           6.925987%        6.643917%             6.87
Prepay amount        8,113,382.20       516,193.09     8,629,575.29

- --------------------------------------------------------------------------------
                                FEES AND ADVANCES
- --------------------------------------------------------------------------------

                                                            Total
                                                            -----
Master serv fees             0.00           947.40           947.40
Sub servicer fees            0.00             0.00             0.00
Trustee fees               164.67            39.95           204.62


Agg advances                  N/A              N/A              N/A
Adv this period              0.00             0.00             0.00

- --------------------------------------------------------------------------------
                          LOSSES & INSURANCE COVERAGES
- --------------------------------------------------------------------------------

                                                            Total
                                                            -----
Realized losses              0.00             0.00             0.00
Cumulative losses            0.00             0.00             0.00

Coverage Amounts                                            Total
- ----------------                                            -----
Bankruptcy                   0.00             0.00             0.00
Fraud                        0.00             0.00             0.00
Special Hazard               0.00             0.00             0.00


                         Aggregate Certificate Information
   -----------------------------------------------------------------------------
   Class            Aggregate           Aggregate                     Aggregate
   Type            Percentage           Prepay Pct.              End Cert. Bal.
   -----------------------------------------------------------------------------
   Senior           84.763278%           100.000000%             52,021,301.90
   -----------------------------------------------------------------------------
   Junior           15.236722%             0.000000%              9,351,149.92
   -----------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                          DELINQUENCY INFORMATION
- --------------------------------------------------------------------------------
Period                             Loan Count    Ending Stated Balance
- ------                             ----------    ---------------------
30 to 59 days                           0                         0.00
60 to 89 days                           1                   515,103.35
90 or more                              0                         0.00
Foreclosure                             0                         0.00

Totals:                                 1                   515,103.35
- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------
                                REO INFORMATION
- --------------------------------------------------------------------------------
   REO Date        Loan Number     Ending Stated Balance          Book Value
   --------        -----------     ---------------------          ----------
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   N/A              #                   0                            N/A
   Totals:                              0                            N/A

Current Total Outstanding Balance:                                      0.00
Current Total Outstanding Number of Loans:                                 0




- --------------------------------------------------------------------------------
                               OTHER INFORMATION
- --------------------------------------------------------------------------------
                                  Amount/Withdrawal     Total/Ending Bal.
                                  -----------------     -----------------
Available remittance amount            9,073,462.80          9,073,462.80
Principal remittance amount            8,737,445.69          8,737,445.69
Interest remittance amount               336,017.10            336,017.10