O10.9 — Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium
Is O10.9 billable?
No — O10.9 is a non-billable header code. O10.9 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 6 billable codes beneath O10.9.
Billable codes under this header
- O10.92Unspecified pre-existing hypertension complicating childbirth
- O10.93Unspecified pre-existing hypertension complicating the puerperium
- O10.911Unspecified pre-existing hypertension complicating pregnancy, first trimester
- O10.912Unspecified pre-existing hypertension complicating pregnancy, second trimester
- O10.913Unspecified pre-existing hypertension complicating pregnancy, third trimester
- O10.919Unspecified pre-existing hypertension complicating pregnancy, unspecified trimester
O10.9 at a glance
| Code | O10.9 |
|---|---|
| Description | Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O10.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- supervision of normal pregnancy (Z34.-)
Use additional code — inherited from Chapter 15
Report an additional code alongside O10.9 to fully describe the condition. O10.9 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O10.9, but a patient may have both at the same time. When documentation supports it, O10.9 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O10
The conditions below are not part of O10.9, but a patient may have both at the same time. When documentation supports it, O10.9 and the excluded code may both be reported.
- pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)
What codes fall under O10.9? (3)
How long has O10.9 existed?
O10.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the O10 family? (5)
- O10.0Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperiumnot billable
- O10.1Pre-existing hypertensive heart disease complicating pregnancy, childbirth and the puerperiumnot billable
- O10.2Pre-existing hypertensive chronic kidney disease complicating pregnancy, childbirth and the puerperiumnot billable
- O10.3Pre-existing hypertensive heart and chronic kidney disease complicating pregnancy, childbirth and the puerperiumnot billable
- O10.4Pre-existing secondary hypertension complicating pregnancy, childbirth and the puerperiumnot billable