ICD-10-CM 2027 diagnosis code

O60Preterm labor

Not billable — use a more specific code

O60 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About O60

O60 is the ICD-10-CM diagnosis code for preterm labor. It belongs to block O60-O77 (complications of labor and delivery) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: O60.0 (without delivery), O60.1 (with preterm delivery) and O60.2 (labor).

Don't report O60 together with the conditions in its Excludes1 note: false labor (O47.0-) and threatened labor NOS (O47.0-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under O60

Coding notes

IncludesFurther defines the content of the category

onset (spontaneous) of labor before 37 completed weeks of gestation

Excludes1Not coded here — never report together with this code

false labor (O47.0-)
threatened labor NOS (O47.0-)

Notes that apply from higher levels

Instructions written at a parent level also apply to O60.

Broader instructions also apply from Chapter 15: Pregnancy, childbirth and the puerperium.

Codes whose notes reference O60

O47Excludes1
Z3ACode first

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about O60

Is O60 billable?: No. O60 is a header code. Report one of its more specific subcodes instead.