O09.93 — Supervision of high risk pregnancy, unspecified, third trimester
Is O09.93 billable?
Yes, but O09.93 is an unspecified code. O09.93 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O09.93 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting O09.93 — the more specific alternatives are listed below.
O09.93 at a glance
| Code | O09.93 |
|---|---|
| Description | Supervision of high risk pregnancy, unspecified, third trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to O09.93?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name O09.93 directly.
CMS will reject this code as the principal diagnosis on an inpatient claim. It describes something other than the condition chiefly responsible for the admission.
Which MS-DRGs does O09.93 group to?
O09.93 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 O09.93 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O09.9, the nearest indexed parent of O09.93. Use them to find the family, then select the specific code.
- Observation › pregnancy › high risk (following) (for) (without need for further medical care)
- Pregnancy › supervision of › high-risk (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O09.93 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 O09.93 to fully describe the condition. O09.93 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 O09.93, but a patient may have both at the same time. When documentation supports it, O09.93 and the excluded code may both be reported.
How long has O09.93 existed?
O09.93 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.