ICD-10-CM 2027 diagnosis code

O47False labor

Not billable — use a more specific code

O47 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 O47

O47 is the ICD-10-CM diagnosis code for false labor. It belongs to block O30-O48 (maternal care related to the fetus and amniotic cavity and possible delivery problems) 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: O47.0 (before 37 completed weeks of gestation), O47.1 (at or after 37 completed weeks of gestation) and O47.9 (unspecified).

Don't report O47 together with the conditions in its Excludes1 note: preterm labor (O60.-).

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 O47

Coding notes

IncludesFurther defines the content of the category

Braxton Hicks contractions
threatened labor

Excludes1Not coded here — never report together with this code

preterm labor (O60.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to O47.

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

Code history

2016
2017
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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 O47

Is O47 billable?: No. O47 is a header code. Report one of its more specific subcodes instead.