O10
Header — not billablePre-existing hypertension complicating pregnancy, childbirth and the puerperium
The ICD-10 code for pre-existing hypertension complicating pregnancy, childbirth and the puerperium is O10.
O10 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
- pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)
Includes
Terms listed here further define or give examples of the conditions grouped under this code — they describe what the code covers, not a separate diagnosis.
- pre-existing hypertension with pre-existing proteinuria complicating pregnancy, childbirth and the puerperium
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.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under O10
- 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
Related codes in this category
- O11Pre-existing hypertension with pre-eclampsianon-billable header
- O12Gestational [pregnancy-induced] edema and proteinuria without hypertensionnon-billable header
- O13Gestational [pregnancy-induced] hypertension without significant proteinurianon-billable header
- O14Pre-eclampsianon-billable header
- O15Eclampsianon-billable header
- O16Unspecified maternal hypertensionnon-billable header
- O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperiumnon-billable header