O66.5 Attempted application of vacuum extractor and forceps

The ICD-10-CM code for Attempted application of vacuum extractor and forceps is O66.5 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

15: Pregnancy, childbirth and the puerperium (O00-O9A)

Section

O60-O77: Complications of labor and delivery (O60-O77)

Category O66

12 codes (10 billable)

FY2026 Status

Stable since FY2024

Also Known As

ICD-10-CM Alphabetic Index entries that lead to O66.5:

• Failure, failed › ventouse NOS (with subsequent cesarean delivery)
• Failure, failed › vacuum extraction NOS (with subsequent cesarean delivery)
• Delivery (childbirth) (labor) › forceps, low following failed vacuum extraction
• Failure, failed › forceps NOS (with subsequent cesarean delivery)
• Delivery (childbirth) (labor) › cesarean (for) › failed › vacuum extraction
• Delivery (childbirth) (labor) › cesarean (for) › failed › ventouse
• Delivery (childbirth) (labor) › complicated › by › attempted vacuum extraction and forceps
• Delivery (childbirth) (labor) › cesarean (for) › failed › forceps

Inclusion Terms

• Attempted application of vacuum or forceps, with subsequent delivery by forceps or cesarean delivery

U.S. Hospital Utilization

• An estimated 7,095 U.S. inpatient stays in 2023 included O66.5 among the documented diagnoses.
• 230 stays listed it as the principal diagnosis.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)