ICD Conversion Programs

Current Versions

These documents are based on 2023 Casefinding lists (posted in November 2022).

• ICD-9-CM to ICD-10-CM Based on FY2023 ICD-10-CM codes [PDF (PDF, 686 KB)] [XLSX (XLSX, 104 KB)]
• ICD-10-CM to ICD-9-CM Based on FY2023 ICD-10-CM codes [PDF (PDF, 818 KB)] [XLSX (XLSX, 78 KB)]

• ICD-10 to ICD-10-CM Based on FY2023 ICD-10-CM codes [PDF (PDF, 629 KB)] [XLSX (XLSX, 61 KB)]
• ICD-10-CM to ICD-10 Based on FY2023 ICD-10-CM codes [PDF (PDF, 772 KB)] [XLSX (XLSX, 71 KB)]

• ICD-9-CM to ICD-10 Based on FY2023 ICD-10-CM codes [PDF (PDF, 644 KB)] [XLSX (XLSX, 141 KB)]
• ICD-10 to ICD-9-CM Based on FY2023 ICD-10-CM codes [PDF (PDF, 625 KB)] [XLSX (XLSX, 83 KB)]

This document was updated on 2/16/2023 and includes the new histologies implemented in 2022:

• ICD-O-3 to ICD-9-CM, ICD-10 (Cause of Death) and ICD-10-CM (XLSX, 340 KB)

ICD-O-2 to 3

ICD-O-2 to 3 materials were updated on 6/14/2001 from their original posting of 3/22/2001.

• ICDO2-3 Manual PDF (PDF, 993 KB)
• Microsoft Windows programs ICDO2-3 (EXE, 1.2 MB)
• Self-extracting zip files with ANSI C source code of the above program: ICDO2-3.ANSI_C (EXE, 72 KB)
• Documentation of the above program and source code: ICDO2-3 (PDF, 27 KB)
• Files displaying the conversions: ICDO2-3 (XLS, 83 KB)
• File indicating all flag changes (XLS, 26 KB)that were made to both the book and the program
• Errata dated 6/14/2001 (PDF, 12 KB)