ICD-9 64203 → ICD-10-CM
Official CMS General Equivalence Mapping (GEM) equivalents for the retired ICD-9-CM code 64203.
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify against current official sources before use in billing.
- O10.011Pre-existing essential hypertension complicating pregnancy, first trimesterApproximate match
- O10.012Pre-existing essential hypertension complicating pregnancy, second trimesterApproximate match
- O10.013Pre-existing essential hypertension complicating pregnancy, third trimesterApproximate match
- O10.911Unspecified pre-existing hypertension complicating pregnancy, first trimesterApproximate match
- O10.912Unspecified pre-existing hypertension complicating pregnancy, second trimesterApproximate match
- O10.913Unspecified pre-existing hypertension complicating pregnancy, third trimesterApproximate match