General Equivalence Mappings (GEM tables) stats:
| Conversion type |
Code type |
Codes count |
Exact match |
Approx. single |
No map |
Duplicates* |
| ICD-9-MC to ICD-10-MC |
Diagnosis |
14,567 |
3,533 |
(24.25%) |
9,964 |
(68.40%) |
425 |
(2.91%) |
645 |
(4.43%) |
| ICD-9-MC to ICD-10-PCS |
Procedures |
3,878 |
45 |
(1.16%) |
3,412 |
(87.98%) |
210 |
(5.42%) |
211 |
(5.44%) |
| ICD-10-MC to ICD-9-MC |
Diagnosis |
69,832 |
3,526 |
(5.05%) |
61,826 |
(88.54%) |
669 |
(0.96%) |
3,811 |
(5.46%) |
| ICD-10-PCS to ICD-9-MC |
Procedures |
71,920 |
47 |
(0.07%) |
69,802 |
(97.05%) |
0 |
(0.00%) |
2,071 |
(2.88%) |
* Duplicates are those cases which can not be automated (containing OR).