| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| 4A1074Z (Procedure) - Monitoring of Central Nervous Electr Activity, Via Opening (Monitoring of Central Nervous Electrical Activity, Via Natural or Artificial Opening) | Single To Single | 8914 (Procedure) - Electroencephalogram |
| CMS/CDC General Equivalence Mappings |
| 4A1074Z (Procedure) - Monitoring of Central Nervous Electr Activity, Via Opening (Monitoring of Central Nervous Electrical Activity, Via Natural or Artificial Opening) | Single To Single | Alternative #1: 8914 (Procedure) - Electroencephalogram |
Single To Single | Alternative #2: 8919 (Procedure) - Video/radio eeg monitor (Video and radio-telemetered electroencephalographic monitoring) |