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SNOMED CT change statistics from U.S. version 20140901 to U.S. version 20160901.
| SNOMED CT version | Relational changes | IS-A deletion | IS-A insertion |
|---|---|---|---|
| 20140901 | 57,879 | 4,799 | 2,723 |
| 20150301 | 60,433 | 4,426 | 3,807 |
| 20150901 | 61,253 | 5,866 | 3,350 |
| 20160301 | 64,676 | 7,888 | 3,350 |
| 20160901 | 19,753 | 1,212 | 835 |
| Cumulative | 263,994 | 20,744 | 11,497 |
