O34.211 Maternal care for low transverse scar from previous cesarean delivery

Billable ICD-10-CM code, FY2026.

Applies 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

MS-DRG index

Defines the logic of DRG(s) 817-819 in MDC 14.

Approximate ICD-9-CM (GEMs)

• 654.21 Previous cesarean delivery, delivered, with or without mention of antepartum condition (approximate)
• 654.23 Previous cesarean delivery, antepartum condition or complication (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Maternity diagnoses (age 9 through 64): Age conflict edit. These diagnoses are clinically expected only in patients age 9 through 64.

Code annotations containing back-references to O34.211

Back-references to O34.21

• Code First: O75.82 Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section ("previous cesarean delivery (O34.21-)")

Back-references to O34.2

• Type 1 Excludes: Z98.891 History of uterine scar from previous surgery ("Maternal care due to uterine scar from previous surgery (O34.2-)")

Back-references to O34

• Use Additional: O65.5 Obstructed labor due to abnormality of maternal pelvic organs ("code to identify abnormality of pelvic organs O34.-")
• Type 2 Excludes: O99.8 Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium ("maternal care for known or suspected abnormality of maternal pelvic organs (O34.-)")

Diagnosis Index entries for O34.211

• Cesarean delivery, previous, affecting management of pregnancy › low transverse scar
• Delivery (childbirth) (labor) › cesarean (for) › previous › cesarean delivery › low transverse scar
• Delivery (childbirth) (labor) › cesarean (for) › scar (s) › cesarean delivery › low transverse
• Delivery (childbirth) (labor) › vaginal, following previous cesarean delivery › low transverse scar

Nearby codes

• O34.11 Maternal care for benign tumor of corpus uteri, first trimester
• O34.12 Maternal care for benign tumor of corpus uteri, second trimester
• O34.13 Maternal care for benign tumor of corpus uteri, third trimester
• O34.2 Maternal care due to uterine scar from previous surgery
• O34.21 Maternal care for scar from previous cesarean delivery
• O34.211 Maternal care for low transverse scar from previous cesarean delivery (this code)
• O34.212 Maternal care for vertical scar from previous cesarean delivery
• O34.218 Maternal care for other type scar from previous cesarean delivery
• O34.219 Maternal care for unspecified type scar from previous cesarean delivery
• O34.22 Maternal care for cesarean scar defect (isthmocele)
• O34.29 Maternal care due to uterine scar from other previous surgery