O43.899 — Other placental disorders, unspecified trimester
Is O43.899 billable?
Yes, but O43.899 is an unspecified code. O43.899 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O43.899 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 O43.899 — the more specific alternatives are listed below.
O43.899 at a glance
| Code | O43.899 |
|---|---|
| Description | Other placental disorders, unspecified trimester |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does O43.899 group to?
O43.899 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
How is O43.899 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O43.89, the nearest indexed parent of O43.899. Use them to find the family, then select the specific code.
- Hematoma › placenta (traumatic) (skin surface intact)
- Varix › placenta (lower limb)
- Pregnancy › complicated by › placental dysfunction (single) (uterine)
- Pregnancy › complicated by › placental disorder › specified NEC (single) (uterine)
- Delivery › complicated › by › placenta, placental › abnormality › specified NEC (childbirth) (labor)
- Delivery › complicated › by › placenta, placental › disorder › specified NEC (childbirth) (labor)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O43.899 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 O43.899 to fully describe the condition. O43.899 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 O43.899, but a patient may have both at the same time. When documentation supports it, O43.899 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O43
The conditions below are not part of O43.899, but a patient may have both at the same time. When documentation supports it, O43.899 and the excluded code may both be reported.
How long has O43.899 existed?
O43.899 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.