O45.001 — Premature separation of placenta with coagulation defect, unspecified, first trimester
Is O45.001 billable?
Yes, but O45.001 is an unspecified code. O45.001 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O45.001 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 O45.001 — the more specific alternatives are listed below.
More specific alternatives
O45.001 at a glance
| Code | O45.001 |
|---|---|
| Description | Premature separation of placenta with coagulation defect, unspecified, first trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O45.001 group to?
O45.001 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, O45.001 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is O45.001 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O45.00, the nearest indexed parent of O45.001. Use them to find the family, then select the specific code.
- Abruptio placentae › with › coagulation defect
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O45.001 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 O45.001 to fully describe the condition. O45.001 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 O45.001, but a patient may have both at the same time. When documentation supports it, O45.001 and the excluded code may both be reported.
How long has O45.001 existed?
O45.001 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.