ICD-10-CM O66: Other obstructed labor

ICD-10-CM Diagnosis Code (2025)

Official Description for O66

Other obstructed labor

Coding Notes & Guidelines for O66

Code First

rupture of uterus, if applicable (O71.0-, O71.1)

Use Additional Code

code to identify cause of obstruction

Use Additional Code

code to identify cause of obstruction

Inclusion Terms

Impacted shoulders

Inclusion Terms
  • Dystocia due to fetal ascites
  • Dystocia due to fetal hydrops
  • Dystocia due to fetal meningomyelocele
  • Dystocia due to fetal sacral teratoma
  • Dystocia due to fetal tumor
  • Dystocia due to hydrocephalic fetus
Inclusion Terms

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

Inclusion Terms
  • Dystocia NOS
  • Fetal dystocia NOS
  • Maternal dystocia NOS

Child Codes (More Specific Codes for O66):

O66.0 - Obstructed labor due to shoulder dystocia O66.1 - Obstructed labor due to locked twins O66.2 - Obstructed labor due to unusually large fetus O66.3 - Obstructed labor due to other abnormalities of fetus O66.4 - Failed trial of labor O66.40 - Failed trial of labor, unspecified O66.41 - Failed attempted vaginal birth after previous cesarean delivery O66.5 - Attempted application of vacuum extractor and forceps O66.6 - Obstructed labor due to other multiple fetuses O66.8 - Other specified obstructed labor O66.9 - Obstructed labor, unspecified

About ICD-10-CM Code O66 (Other obstructed labor)

ICD-10-CM code O66 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM O66 became effective on October 1, 2024.

This page provides detailed information about O66 - Other obstructed labor. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Other obstructed labor.