O10.9
Header — not billableUnspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
The ICD-10 code for unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium is O10.9.
O10.9 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperiumnon-billable header
- O10.1Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperiumnon-billable header
- O10.2Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperiumnon-billable header
- O10.3Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperiumnon-billable header
- O10.4Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperiumnon-billable header
- O10.9Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperiumnon-billable header