ICD-10-CM 2027 diagnosis code

O34.2Maternal care due to uterine scar from previous surgery

Not billable — use a more specific code

O34.2 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 O34.2

O34.2 is the ICD-10-CM diagnosis code for maternal care due to uterine scar from previous surgery. It belongs to category O34 (maternal care for abnormality of pelvic organs), 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.

Within O34 (maternal care for abnormality of pelvic organs), O34.2 is specifically for maternal care due to uterine scar from previous surgery. Related codes cover for congenital malformation of uterus (O34.0), for benign tumor of corpus uteri (O34.1), for cervical incompetence (O34.3), for other abnormalities of cervix (O34.4), for other abnormalities of gravid uterus (O34.5), for abnormality of vagina (O34.6), for abnormality of vulva and perineum (O34.7), for other abnormalities of pelvic organs (O34.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: O34.21 (delivery), O34.22 ((isthmocele)) and O34.29 (surgery).

Code first: any associated obstructed labor (O65.5).

Use an additional code for specific condition.

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 O34.2

Notes that apply from higher levels

Instructions written at a parent level also apply to O34.2.

› From O34 Maternal care for abnormality of pelvic organs

Includes

the listed conditions as a reason for hospitalization or other obstetric care of the mother, or for cesarean delivery before onset of labor

Code first

any associated obstructed labor (O65.5)

Use additional code

code for specific condition

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

Codes whose notes reference O34.2

Z98.891Excludes1

Code history

2016
2017
2018
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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 O34.2

Is O34.2 billable?: No. O34.2 is a header code. Report one of its more specific subcodes instead.