| Recommended Mapping (based on statistical analysis) |
| Source ICD-9 | Mapping Type | Target ICD-10 |
| 64202 (Diagnosis) - Essen hyperten-del w p/p (Benign essential hypertension, complicating pregnancy, childbirth, and the puerperium, delivered, with mention of postpartum complication) | Single To Single | O1003 (Diagnosis) - Pre-existing essential hypertension comp the puerperium (Pre-existing essential hypertension complicating the puerperium) |
| CMS/CDC General Equivalence Mappings |
| 64202 (Diagnosis) - Essen hyperten-del w p/p (Benign essential hypertension, complicating pregnancy, childbirth, and the puerperium, delivered, with mention of postpartum complication) | Single To Single | Alternative #1: O1003 (Diagnosis) - Pre-existing essential hypertension comp the puerperium (Pre-existing essential hypertension complicating the puerperium) |