O41.0 — Oligohydramnios
Is O41.0 billable?
No — O41.0 is a non-billable header code. O41.0 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 28 billable codes beneath O41.0.
Billable codes under this header
- O41.00X0Oligohydramnios, unspecified trimester, not applicable or unspecified
- O41.00X1Oligohydramnios, unspecified trimester, fetus 1
- O41.00X2Oligohydramnios, unspecified trimester, fetus 2
- O41.00X3Oligohydramnios, unspecified trimester, fetus 3
- O41.00X4Oligohydramnios, unspecified trimester, fetus 4
- O41.00X5Oligohydramnios, unspecified trimester, fetus 5
- O41.00X9Oligohydramnios, unspecified trimester, other fetus
- O41.01X0Oligohydramnios, first trimester, not applicable or unspecified
- O41.01X1Oligohydramnios, first trimester, fetus 1
- O41.01X2Oligohydramnios, first trimester, fetus 2
- O41.01X3Oligohydramnios, first trimester, fetus 3
- O41.01X4Oligohydramnios, first trimester, fetus 4
- O41.01X5Oligohydramnios, first trimester, fetus 5
- O41.01X9Oligohydramnios, first trimester, other fetus
- O41.02X0Oligohydramnios, second trimester, not applicable or unspecified
- O41.02X1Oligohydramnios, second trimester, fetus 1
- O41.02X2Oligohydramnios, second trimester, fetus 2
- O41.02X3Oligohydramnios, second trimester, fetus 3
- O41.02X4Oligohydramnios, second trimester, fetus 4
- O41.02X5Oligohydramnios, second trimester, fetus 5
- O41.02X9Oligohydramnios, second trimester, other fetus
- O41.03X0Oligohydramnios, third trimester, not applicable or unspecified
- O41.03X1Oligohydramnios, third trimester, fetus 1
- O41.03X2Oligohydramnios, third trimester, fetus 2
- O41.03X3Oligohydramnios, third trimester, fetus 3
- O41.03X4Oligohydramnios, third trimester, fetus 4
- O41.03X5Oligohydramnios, third trimester, fetus 5
- O41.03X9Oligohydramnios, third trimester, other fetus
O41.0 at a glance
| Code | O41.0 |
|---|---|
| Description | Oligohydramnios |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is O41.0 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to O41.0. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Oligohydramnios
- Pregnancy › complicated by › oligohydramnios (single) (uterine)
Inclusion terms
Alternative wording in documentation that is classified to O41.0.
- Oligohydramnios without rupture of membranes
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O41.0 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 O41
The conditions below can never be reported together with O41.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- encounter for suspected maternal and fetal conditions ruled out (Z03.7-)
Use additional code — inherited from Chapter 15
Report an additional code alongside O41.0 to fully describe the condition. O41.0 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 O41.0, but a patient may have both at the same time. When documentation supports it, O41.0 and the excluded code may both be reported.
What codes fall under O41.0? (4)
How long has O41.0 existed?
O41.0 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.