| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| O9A219 (Diagnosis) - Inj/poisn/oth conseq of external causes comp preg, unsp tri (Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester) | Single To Single | 64890 (Diagnosis) - Oth curr cond preg-unsp (Other current conditions classifiable elsewhere of mother, unspecified as to episode of care or not applicable) |
| CMS/CDC General Equivalence Mappings |
| O9A219 (Diagnosis) - Inj/poisn/oth conseq of external causes comp preg, unsp tri (Injury, poisoning and certain other consequences of external causes complicating pregnancy, unspecified trimester) | Single To Single | Alternative #1: 64890 (Diagnosis) - Oth curr cond preg-unsp (Other current conditions classifiable elsewhere of mother, unspecified as to episode of care or not applicable) |