O66.41 — Failed attempted vaginal birth after previous cesarean delivery
Is O66.41 billable?
Yes — O66.41 is billable for FY2027. O66.41 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O66.41 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O66.41 at a glance
| Code | O66.41 |
|---|---|
| Description | Failed attempted vaginal birth after previous cesarean delivery |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O66.41 group to?
O66.41 sits in MDC 14 and helps define the logic of 1 MS-DRG (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 998—
How is O66.41 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O66.41. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Failure, failed › trial of labor › following previous cesarean delivery
- Delivery › cesarean › failed › trial of labor NOS › following previous cesarean delivery (childbirth) (labor)
- Delivery › complicated › by › failed › attempted vaginal birth after previous cesarean delivery (childbirth) (labor)
Code first
The underlying condition below must be sequenced before O66.41. O66.41 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O66.41 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 O66.41 to fully describe the condition. O66.41 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 O66.41, but a patient may have both at the same time. When documentation supports it, O66.41 and the excluded code may both be reported.
How long has O66.41 existed?
O66.41 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.