| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| 3E1G78X (Procedure) - Irrigation of Upper GI using Irrigat, Via Opening, Diagn (Irrigation of Upper GI using Irrigating Substance, Via Natural or Artificial Opening, Diagnostic) | Single To Single | 9633 (Procedure) - Gastric lavage |
| CMS/CDC General Equivalence Mappings |
| 3E1G78X (Procedure) - Irrigation of Upper GI using Irrigat, Via Opening, Diagn (Irrigation of Upper GI using Irrigating Substance, Via Natural or Artificial Opening, Diagnostic) | Single To Single | Alternative #1: 9633 (Procedure) - Gastric lavage |
Single To Single | Alternative #2: 9636 (Procedure) - GI ostomy irrigation (Irrigation of gastrostomy or enterostomy) |