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O76 ICD-10-CM Code: Abnormality in fetal heart rate and rhythm complicating labor and delivery

O76 is not a CMS-HCC payment code. MEAT criteria · RAF calculator · HCC Buddy coding tools

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FY 2026 Apr update / Pregnancy, childbirth and the puerperium (O00-O9A) / Complications of labor and delivery (O60-O77)

O76

Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidance

Abnormality in fetal heart rate and rhythm complicating labor and delivery

An abnormal heartbeat pattern in the baby detected during labor and delivery, which may indicate fetal distress or other concerns.

CMS-HCC V28

N/A

Not mapped

CMS-HCC V24

N/A

Not mapped

ACA/HHS

HCC 209

Varies by metal level

ESRD/PACE

N/A

Not mapped

RXHCC

N/A

Not mapped

Code Book Path

Official
O7Complications of labor and delivery (O60-O77)
O76Abnormality in fetal heart rate and rhythm complicating labor and delivery

Inclusion Terms

Official
  • 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

Excludes 2

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

Related Child Codes

Official

ICD-10-CM does not list child codes under O76 for this display context.

Includes

Official

ICD-10-CM does not list Includes notes for O76 in this effective period.

Excludes 1

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

Code First

Official

ICD-10-CM does not list Code First sequencing instructions for O76 in this effective period.

Use Additional

Official

ICD-10-CM does not list Use Additional Code instructions for O76 in this effective period.

Code Also

Official

ICD-10-CM does not list Code Also instructions for O76 in this effective period.

Buddy Documentation Tip

HCC Buddy guidance
Document the specific abnormality (bradycardia, tachycardia, variable decelerations) when available from fetal monitoring strips
Link this code with any interventions performed in response to the abnormal heart rate

Current with CMS: FY2026 ICD-10-CM Apr 1 update (effective Apr 1 – Sep 30, 2026) · CMS-HCC V28, 100% phased in for payment year 2026. FY2027 code set already staged for October 1, 2026. How HCC Buddy stays current →

Is O76 an HCC code?

No. O76 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.

Code
O76
Description
Abnormality in fetal heart rate and rhythm complicating labor and delivery
HCC (V28)
No CMS-HCC V28 mapping
RAF
Billable
Yes
Payment year
2026

Coder workflow notes

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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

O76 is the ICD-10-CM diagnosis code for abnormality in fetal heart rate and rhythm complicating labor and delivery. An abnormal heartbeat pattern in the baby detected during labor and delivery, which may indicate fetal distress or other concerns. O76 sits in the ICD-10-CM chapter for pregnancy, childbirth and the puerperium (o00-o9a), within the section covering complications of labor and delivery (o60-o77).

O76 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.

Document the specific abnormality (bradycardia, tachycardia, variable decelerations) when available from fetal monitoring strips.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for O76 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.

Coding Tips

  • Document the specific abnormality (bradycardia, tachycardia, variable decelerations) when available from fetal monitoring strips
  • Link this code with any interventions performed in response to the abnormal heart rate

Excludes 1, Do NOT code together

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

Excludes 2, Not included here, may code separately

Code Hierarchy

O76Abnormality in fetal heart rate and rhythm complicating labor and delivery
O76Abnormality in fetal heart rate and rhythm complicating labor and delivery

Work O76 in HCC Buddy

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