O34.21 – Maternal care for scar from previous cesarean delivery

ICD-10-CM 2027 diagnosis code · Maternal care related to the fetus and amniotic cavity and possible delivery problems

Non-billable header

ICD-10-CM code O34.21

Code: O34.21 (claims format: O3421)
Description: Maternal care for scar from previous cesarean delivery
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O30-O48 Maternal care related to the fetus and amniotic cavity and possible delivery problems
Parent codes: O34 › O34.2

Billable codes under O34.21

O34.21 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

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

Related codes in O34.2

Frequently asked questions

What is ICD-10 code O34.21?

O34.21 is the ICD-10-CM code for maternal care for scar from previous cesarean delivery, in the block O30-O48 (Maternal care related to the fetus and amniotic cavity and possible delivery problems).

Is O34.21 a billable code?

No. O34.21 is a header code with more specific child codes; report one of the billable codes listed above.

What category does O34.21 belong to?

It belongs to category O34 – Maternal care for abnormality of pelvic organs.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.