ICDcodes.org
FY2027

O36.8392Maternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 2

BillableUnspecified

Is O36.8392 billable?

Yes, but O36.8392 is an unspecified code. O36.8392 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, O36.8392 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 O36.8392 — the more specific alternatives are listed below.

O36.8392 at a glance

CodeO36.8392
DescriptionMaternal care for abnormalities of the fetal heart rate or rhythm, unspecified trimester, fetus 2
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027
7th character "2"fetus 2

What does the 7th character "2" mean in O36.8392?

In O36.8392, the 7th character 2 means fetus 2. The 7th character is required for O36.8392 to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

Which MS-DRGs does O36.8392 group to?

O36.8392 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 O36.8392 listed in the Alphabetic Index?

The Alphabetic Index lists these routes under O36.83, the nearest indexed parent of O36.8392. Use them to find the family, then select the specific code.

  • Pregnancycomplicated byabnormal, abnormalityfetal heart rate or rhythm (single) (uterine)
  • Pregnancycomplicated byfetalbradycardia (single) (uterine)
  • Pregnancycomplicated byfetaldepressed heart rate tones (single) (uterine)
  • Pregnancycomplicated byfetalheart rate irregularity (single) (uterine)
  • Pregnancycomplicated byfetalnon-reassuring heart rate or rhythm (single) (uterine)

Excludes1 — never code together — inherited from Chapter 15

The conditions below can never be reported together with O36.8392 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 O36.8392 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-)
  • placental transfusion syndromes (O43.0-)

Use additional code — inherited from Chapter 15

Report an additional code alongside O36.8392 to fully describe the condition. O36.8392 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 O36.8392, but a patient may have both at the same time. When documentation supports it, O36.8392 and the excluded code may both be reported.

  • mental and behavioral disorders associated with the puerperium (F53.-)
  • obstetrical tetanus (A34)
  • postpartum necrosis of pituitary gland (E23.0)
  • puerperal osteomalacia (M83.0)

Excludes2 — not included here — inherited from O36

The conditions below are not part of O36.8392, but a patient may have both at the same time. When documentation supports it, O36.8392 and the excluded code may both be reported.

  • labor and delivery complicated by fetal stress (O77.-)

How long has O36.8392 existed?

O36.8392 first appears in FY2018 (FY2017 is not available, so it may have appeared then).

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.