<Page> 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: June 10, 2003 <Table> <Caption> Commission Exact name of registrant as specified in its charter State of I.R.S. Employer File Number and principal office address and telephone number Incorporation ID. Number 1-1217 Consolidated Edison Company of New York, Inc. New York 13-5009340 4 Irving Place, New York, New York 10003 (212) 460-4600 </Table> <Page> INFORMATION TO BE INCLUDED IN THE REPORT ITEM 5. OTHER EVENTS On June 10, 2003 Consolidated Edison Company of New York, Inc. (the "Company") entered into (i) an underwriting agreement with HSBC Securities (USA) Inc., J.P. Morgan Securities Inc. and Morgan Stanley & Co. Incorporated, as representatives for the underwriters named therein for the sale of $200 million aggregate principal amount of the Company's 3.85% Debentures, Series 2003 B (the "2003 B Debentures") and (ii) an underwriting agreement with Banc One Capital Markets, Inc., J.P. Morgan Securities Inc. and Morgan Stanley & Co. Incorporated, as representatives for the underwriters named therein for the sale of $200 million aggregate principal amount of the Company's 5.10% Debentures, Series 2003 C (the "2003 C Debentures" and, together with the 2003 B Debentures, the "Debentures"). The Debentures were registered under the Securities Act of 1933 pursuant to Registration Statement on Form S-3 (No. 333-104623, declared effective May 27, 2003) relating to $1,075,000,000 aggregate principal amount of unsecured debt securities of the Company, of which $275 million has been carried over from Registration Statement No. 333-101227. Copies of the underwriting agreements and the definitive forms of the Debentures are filed as exhibits to this report. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS (c) Exhibits See Exhibit Index. - 2 - <Page> SIGNATURE 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 hereunto duly authorized. CONSOLIDATED EDISON COMPANY OF NEW YORK, INC. By /s/ Edward J. Rasmussen Edward J. Rasmussen Vice President and Controller DATE: June 12, 2003 - 3 - <Page> Index to Exhibits Sequential Page Number at which Exhibit Description Exhibit Begins 1.1 Underwriting Agreement relating to the 2003 B Debentures. 1.2 Underwriting Agreement relating to the 2003 C Debentures. 4.1 Form of the 2003 B Debentures. 4.2 Form of the 2003 C Debentures. 12 Statement of computation of the Company's ratio of earnings to fixed charges for the three and twelve-month periods ended March 31, 2003 and the years 1998- 2002. - 4 -