O10.413 — Pre-existing secondary hypertension complicating pregnancy, third trimester
Is O10.413 billable?
Yes — O10.413 is billable for FY2027. O10.413 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O10.413 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O10.413 at a glance
| Code | O10.413 |
|---|---|
| Description | Pre-existing secondary hypertension complicating pregnancy, third trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O10.413 group to?
O10.413 sits in MDC 14 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 817Other Antepartum Diagnoses with O.R. Procedures with MCCsurgical
- 818Other Antepartum Diagnoses with O.R. Procedures with CCsurgical
- 819Other Antepartum Diagnoses with O.R. Procedures without CC/MCCsurgical
As a secondary diagnosis, O10.413 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is O10.413 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O10.41, the nearest indexed parent of O10.413. Use them to find the family, then select the specific code.
- Hypertension, hypertensive › complicating › pregnancy › pre-existing › secondary (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O10.413 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 O10.413 to fully describe the condition. O10.413 is sequenced first.
- code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.
Use additional code — inherited from O10.4
Report an additional code alongside O10.413 to fully describe the condition. O10.413 is sequenced first.
- code from I15 to identify the type of secondary hypertension
Excludes2 — not included here — inherited from Chapter 15
The conditions below are not part of O10.413, but a patient may have both at the same time. When documentation supports it, O10.413 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O10
The conditions below are not part of O10.413, but a patient may have both at the same time. When documentation supports it, O10.413 and the excluded code may both be reported.
- pre-existing hypertension with superimposed pre-eclampsia complicating pregnancy, childbirth and the puerperium (O11.-)
How long has O10.413 existed?
O10.413 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.