O36.20 — Maternal care for hydrops fetalis, unspecified trimester
Is O36.20 billable?
No — O36.20 is a non-billable header code. O36.20 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 7 billable codes beneath O36.20.
Billable codes under this header
- 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
O36.20 at a glance
| Code | O36.20 |
|---|---|
| Description | Maternal care for hydrops fetalis, unspecified trimester |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is O36.20 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under O36.2, the nearest indexed parent of O36.20. Use them to find the family, then select the specific code.
- Pregnancy › complicated by › hydrops › fetalis (single) (uterine)
Excludes1 — never code together — inherited from Chapter 15
The conditions below can never be reported together with O36.20 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 O36
The conditions below can never be reported together with O36.20 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from O36.2
The conditions below can never be reported together with O36.20 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 O36.20 to fully describe the condition. O36.20 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 O36.20, but a patient may have both at the same time. When documentation supports it, O36.20 and the excluded code may both be reported.
Excludes2 — not included here — inherited from O36
The conditions below are not part of O36.20, but a patient may have both at the same time. When documentation supports it, O36.20 and the excluded code may both be reported.
- labor and delivery complicated by fetal stress (O77.-)
What codes fall under O36.20? (7)
- 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
How long has O36.20 existed?
O36.20 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.