O62.1 Secondary uterine inertia

Billable ICD-10-CM code, FY2026.

Applicable to

• Arrested active phase of labor
• Secondary hypotonic uterine dysfunction

MS-DRG index

Defines the logic of DRG(s) 817-819 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 661.11 Secondary uterine inertia, delivered, with or without mention of antepartum condition (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 O62.1

• Contraction (s), contracture, contracted › uterus › inadequate › secondary
• Delivery (childbirth) (labor) › arrested active phase
• Delivery (childbirth) (labor) › cesarean (for) › inertia, uterus › secondary
• Delivery (childbirth) (labor) › complicated › by › cervical dystocia (hypotonic) › secondary
• Delivery (childbirth) (labor) › complicated › by › dysfunction, uterus NOS › hypotonic › secondary
• Delivery (childbirth) (labor) › complicated › by › inertia, uterus › secondary
• Delivery (childbirth) (labor) › complicated › by › uterine inertia › secondary
• Dysfunction › uterus, complicating delivery › hypotonic › secondary
• Dystocia › cervical (hypotonic) › secondary
• Inertia › uterus, uterine during labor › secondary

Nearby codes

• O62 Abnormalities of forces of labor
• O62.0 Primary inadequate contractions
• O62.1 Secondary uterine inertia (this code)
• O62.2 Other uterine inertia
• O62.3 Precipitate labor
• O62.4 Hypertonic, incoordinate, and prolonged uterine contractions
• O62.8 Other abnormalities of forces of labor
• O62.9 Abnormality of forces of labor, unspecified