Convert ICD-9-CM Diagnosis 642.04 to ICD-10-CM

ICD-9-CM 642.04 converts approximately to:
  • 2022 ICD-10-CM O10.03 Pre-existing essential hypertension complicating the puerperium
  • 2022 ICD-10-CM O10.93 Unspecified pre-existing hypertension complicating the puerperium

Note: approximate conversions between ICD-9-CM codes and ICD-10-CM codes may require clinical interpretation in order to determine the most appropriate conversion code(s) for your specific coding situation.

Source: 2022 ICD-10-CM CMS General Equivalence Mappings.