ICD-10-CM · Chapter 15 · O00-O9A
O63 Long labor
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| O63..0 | Prolonged first stage (of labor) | Yes |
| O63..1 | Prolonged second stage (of labor) | Yes |
| O63..2 | Delayed delivery of second twin, triplet, etc. | Yes |
| O63..9 | Long labor, unspecified | Yes |
Last reviewed: September 2026