O75.82 Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section

Billable ICD-10-CM code, FY2026.

Applicable to

• Delivery by (planned) cesarean section occurring after 37 completed weeks of gestation but before 39 completed weeks gestation due to (spontaneous) onset of labor

Code first

• to specify reason for planned cesarean section such as:
• cephalopelvic disproportion (normally formed fetus) (O33.9)
• previous cesarean delivery (O34.21-)

Applies from O75 Other complications of labor and delivery, not elsewhere classified

Excludes2 (not included here)

• puerperal (postpartum) infection (O86.-)
• puerperal (postpartum) sepsis (O85)

MS-DRG index

Defines the logic of DRG(s) 998 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 649.81 Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section, delivered, with or without mention of antepartum condition (approximate)
• 649.82 Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section, delivered, with mention of postpartum complication (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Diagnosis Index entries for O75.82

• Delivery (childbirth) (labor) › cesarean (for) › occurring after 37 completed weeks of gestation but before 39 completed weeks gestation due to (spontaneous) onset of labor
• Delivery (childbirth) (labor) › cesarean (for) › planned, occurring after 37 completed weeks of gestation but before 39 completed weeks gestation due to (spontaneous) onset of labor
• Pregnancy (single) (uterine) › complicated by (care of) (management affected by) › onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section

Nearby codes

• O75.3 Other infection during labor
• O75.4 Other complications of obstetric surgery and procedures
• O75.5 Delayed delivery after artificial rupture of membranes
• O75.8 Other specified complications of labor and delivery
• O75.81 Maternal exhaustion complicating labor and delivery
• O75.82 Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section (this code)
• O75.89 Other specified complications of labor and delivery
• O75.9 Complication of labor and delivery, unspecified