O36 — Maternal care for other fetal problems
Not billable
Is O36 billable?
No — O36 is a non-billable header code. O36 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 60 billable codes beneath O36.
Billable codes under this header
- O36.4XX0Maternal care for intrauterine death, not applicable or unspecified
- O36.4XX1Maternal care for intrauterine death, fetus 1
- O36.4XX2Maternal care for intrauterine death, fetus 2
- O36.4XX3Maternal care for intrauterine death, fetus 3
- O36.4XX4Maternal care for intrauterine death, fetus 4
- O36.4XX5Maternal care for intrauterine death, fetus 5
- O36.4XX9Maternal care for intrauterine death, other fetus
- O36.20X0Maternal care for hydrops fetalis, unspecified trimester, not applicable or unspecified
- O36.20X1Maternal care for hydrops fetalis, unspecified trimester, fetus 1
- O36.20X2Maternal care for hydrops fetalis, unspecified trimester, fetus 2
- O36.20X3Maternal care for hydrops fetalis, unspecified trimester, fetus 3
- O36.20X4Maternal care for hydrops fetalis, unspecified trimester, fetus 4
- O36.20X5Maternal care for hydrops fetalis, unspecified trimester, fetus 5
- O36.20X9Maternal care for hydrops fetalis, unspecified trimester, other fetus
- O36.21X0Maternal care for hydrops fetalis, first trimester, not applicable or unspecified
- O36.21X1Maternal care for hydrops fetalis, first trimester, fetus 1
- O36.21X2Maternal care for hydrops fetalis, first trimester, fetus 2
- O36.21X3Maternal care for hydrops fetalis, first trimester, fetus 3
- O36.21X4Maternal care for hydrops fetalis, first trimester, fetus 4
- O36.21X5Maternal care for hydrops fetalis, first trimester, fetus 5
- O36.21X9Maternal care for hydrops fetalis, first trimester, other fetus
- O36.22X0Maternal care for hydrops fetalis, second trimester, not applicable or unspecified
- O36.22X1Maternal care for hydrops fetalis, second trimester, fetus 1
- O36.22X2Maternal care for hydrops fetalis, second trimester, fetus 2
- O36.22X3Maternal care for hydrops fetalis, second trimester, fetus 3
- O36.22X4Maternal care for hydrops fetalis, second trimester, fetus 4
- O36.22X5Maternal care for hydrops fetalis, second trimester, fetus 5
- O36.22X9Maternal care for hydrops fetalis, second trimester, other fetus
- O36.23X0Maternal care for hydrops fetalis, third trimester, not applicable or unspecified
- O36.23X1Maternal care for hydrops fetalis, third trimester, fetus 1
- O36.23X2Maternal care for hydrops fetalis, third trimester, fetus 2
- O36.23X3Maternal care for hydrops fetalis, third trimester, fetus 3
- O36.23X4Maternal care for hydrops fetalis, third trimester, fetus 4
- O36.23X5Maternal care for hydrops fetalis, third trimester, fetus 5
- O36.23X9Maternal care for hydrops fetalis, third trimester, other fetus
- O36.60X0Maternal care for excessive fetal growth, unspecified trimester, not applicable or unspecified
- O36.60X1Maternal care for excessive fetal growth, unspecified trimester, fetus 1
- O36.60X2Maternal care for excessive fetal growth, unspecified trimester, fetus 2
- O36.60X3Maternal care for excessive fetal growth, unspecified trimester, fetus 3
- O36.60X4Maternal care for excessive fetal growth, unspecified trimester, fetus 4
- O36.60X5Maternal care for excessive fetal growth, unspecified trimester, fetus 5
- O36.60X9Maternal care for excessive fetal growth, unspecified trimester, other fetus
- O36.61X0Maternal care for excessive fetal growth, first trimester, not applicable or unspecified
- O36.61X1Maternal care for excessive fetal growth, first trimester, fetus 1
- O36.61X2Maternal care for excessive fetal growth, first trimester, fetus 2
- O36.61X3Maternal care for excessive fetal growth, first trimester, fetus 3
- O36.61X4Maternal care for excessive fetal growth, first trimester, fetus 4
- O36.61X5Maternal care for excessive fetal growth, first trimester, fetus 5
- O36.61X9Maternal care for excessive fetal growth, first trimester, other fetus
- O36.62X0Maternal care for excessive fetal growth, second trimester, not applicable or unspecified
- O36.62X1Maternal care for excessive fetal growth, second trimester, fetus 1
- O36.62X2Maternal care for excessive fetal growth, second trimester, fetus 2
- O36.62X3Maternal care for excessive fetal growth, second trimester, fetus 3
- O36.62X4Maternal care for excessive fetal growth, second trimester, fetus 4
- O36.62X5Maternal care for excessive fetal growth, second trimester, fetus 5
- O36.62X9Maternal care for excessive fetal growth, second trimester, other fetus
- O36.63X0Maternal care for excessive fetal growth, third trimester, not applicable or unspecified
- O36.63X1Maternal care for excessive fetal growth, third trimester, fetus 1
- O36.63X2Maternal care for excessive fetal growth, third trimester, fetus 2
- O36.63X3Maternal care for excessive fetal growth, third trimester, fetus 3
O36 at a glance
| Code | O36 |
|---|---|
| Description | Maternal care for other fetal problems |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with O36 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here
The conditions below are not part of O36, but a patient may have both at the same time. When documentation supports it, O36 and the excluded code may both be reported.
- labor and delivery complicated by fetal stress (O77.-)
Includes
Conditions classified to O36.
- the listed conditions in the fetus as a reason for hospitalization or other obstetric care of the mother, or for termination of pregnancy
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O36 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 O36 to fully describe the condition. O36 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 O36, but a patient may have both at the same time. When documentation supports it, O36 and the excluded code may both be reported.
What codes fall under O36? (9)
- O36.0Maternal care for rhesus isoimmunizationnot billable
- O36.1Maternal care for other isoimmunizationnot billable
- O36.2Maternal care for hydrops fetalisnot billable
- O36.4Maternal care for intrauterine deathnot billable
- O36.5Maternal care for known or suspected poor fetal growthnot billable
- O36.6Maternal care for excessive fetal growthnot billable
- O36.7Maternal care for viable fetus in abdominal pregnancynot billable
- O36.8Maternal care for other specified fetal problemsnot billable
- O36.9Maternal care for fetal problem, unspecifiednot billable
How long has O36 existed?
O36 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.
Which codes are confused with O36?
ICD-10-CM declares these codes mutually exclusive with O36 — exactly one of each pair can be correct for a given encounter.