O43.1 — Malformation of placenta
Is O43.1 billable?
No — O43.1 is a non-billable header code. O43.1 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 16 billable codes beneath O43.1.
Billable codes under this header
- O43.101Malformation of placenta, unspecified, first trimester
- O43.102Malformation of placenta, unspecified, second trimester
- O43.103Malformation of placenta, unspecified, third trimester
- O43.109Malformation of placenta, unspecified, unspecified trimester
- O43.111Circumvallate placenta, first trimester
- O43.112Circumvallate placenta, second trimester
- O43.113Circumvallate placenta, third trimester
- O43.119Circumvallate placenta, unspecified trimester
- O43.121Velamentous insertion of umbilical cord, first trimester
- O43.122Velamentous insertion of umbilical cord, second trimester
- O43.123Velamentous insertion of umbilical cord, third trimester
- O43.129Velamentous insertion of umbilical cord, unspecified trimester
- O43.191Other malformation of placenta, first trimester
- O43.192Other malformation of placenta, second trimester
- O43.193Other malformation of placenta, third trimester
- O43.199Other malformation of placenta, unspecified trimester
O43.1 at a glance
| Code | O43.1 |
|---|---|
| Description | Malformation of placenta |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O43.1 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 O43.1 to fully describe the condition. O43.1 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 O43.1, but a patient may have both at the same time. When documentation supports it, O43.1 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O43
The conditions below are not part of O43.1, but a patient may have both at the same time. When documentation supports it, O43.1 and the excluded code may both be reported.
What codes fall under O43.1? (4)
How long has O43.1 existed?
O43.1 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.