2026 ICD-10-CM Diagnosis Code O63Long labor

ICD-10-CM Codes›O00-O9A›O60-O77›O63

ICD-10-CM O63
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

O63 is a non-billable ICD-10-CM category code for long labor, so it cannot be submitted on claims. Use a more specific code from this category instead, such as O63.0, O63.1, O63.2, and O63.9.

Code Identity

ICD-10-CM Code
O63
Billable Status
No — Non-Billable Category
Code Describes
Long labor
Chapter
O60-O77
Complications of labor and delivery

Code Classification

ChapterO00-O9APregnancy, childbirth and the puerperium
SectionO60-O77Complications of labor and delivery
CategoryO63Long labor
This CodeO63Long labor

Specific Coding for Long laborOverview

Non-specific codes like O63 require more characters. Use one of these billable codes instead:

  • Use O63.0 for Prolonged first stage (of labor)

  • Use O63.1 for Prolonged second stage (of labor)

  • Use O63.2 for Delayed delivery of second twin, triplet, etc.

  • Use O63.9 for Long labor, unspecified

Patient EducationClinical

Childbirth Problems

Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About O63Overview

Is O63 (Long labor) a billable code?

No. This is a category header that groups the codes for long labor, and headers cannot be submitted on claims. Claims for long labor need a more specific code from this category, such as O63.0, O63.1, and O63.2.