O76

Abnormality in fetal heart rate and rhythm complicating labor and delivery

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 10 never code together

O76code

Excludes1

fetal stress NOS (O77.9)O77.9 O77.9 O77.9
labor and delivery complicated by electrocardiographic evidence of fetal stress (O77.8)O77.8 O77.8 O77.8
labor and delivery complicated by ultrasonic evidence of fetal stress (O77.8)O77.8 O77.8 O77.8

Excludes2

fetal metabolic acidemia (O68)O68 O68 O68
other fetal stress (O77.0-O77.1)O77.0-O77.1 O77.0-O77.1 O77.0-O77.1

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Excludes1

supervision of normal pregnancy (Z34.-)Z34.-

Excludes2

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

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 14

O76code

Inclusion terms

Depressed fetal heart rate tones complicating labor and delivery
Fetal bradycardia complicating labor and delivery
Fetal heart rate decelerations complicating labor and delivery
Fetal heart rate irregularity complicating labor and delivery
Fetal heart rate abnormal variability complicating labor and delivery
Fetal tachycardia complicating labor and delivery
Non-reassuring fetal heart rate or rhythm complicating labor and delivery

O00-O9Achapter

Notes

CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
1st trimester- less than 14 weeks 0 days
2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
3rd trimester- 28 weeks 0 days until delivery

Use additional code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.Z3A

Index entries leading here 1

Delivery (childbirth) (labor)
- complicated O75.9
  - by
    - depressed fetal heart tones O76
    - fetal
      - heart rate or rhythm (abnormal) (non-reassuring) O76

Medications 1

692 Congenital, Hereditary, and Neonatal Diseases and Abnormalities drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: yes
Code set: FY2026
Block: O60-O77

Present FY2024–FY2027.