O46.021 — Antepartum hemorrhage with disseminated intravascular coagulation, first trimester
Is O46.021 billable?
Yes — O46.021 is billable for FY2027. O46.021 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. O46.021 may be submitted for encounters from October 1, 2026 through September 30, 2027.
O46.021 at a glance
| Code | O46.021 |
|---|---|
| Description | Antepartum hemorrhage with disseminated intravascular coagulation, first trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O46.021 group to?
O46.021 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, O46.021 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is O46.021 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O46.02, the nearest indexed parent of O46.021. Use them to find the family, then select the specific code.
- Hemorrhage, hemorrhagic › antepartum › with coagulation defect › disseminated intravascular coagulation (concealed)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O46.021 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.-)
Excludes1 — never code together — inherited from O46
The conditions below can never be reported together with O46.021 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 15
Report an additional code alongside O46.021 to fully describe the condition. O46.021 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 O46.021, but a patient may have both at the same time. When documentation supports it, O46.021 and the excluded code may both be reported.
How long has O46.021 existed?
O46.021 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.