O10.43
Billable codePre-existing secondary hypertension complicating the puerperium
The ICD-10 code for pre-existing secondary hypertension complicating the puerperium is O10.43.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- O10.41Pre-existing secondary hypertension complicating pregnancynon-billable header
- O10.42Pre-existing secondary hypertension complicating childbirth
- O10.43Pre-existing secondary hypertension complicating the puerperium
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 64214Approximate match
- 64212Approximate match
Associated MS-DRGs
O10.43 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.