O34.21UpcomingCategory · further specificity required

Maternal care for scar from previous cesarean delivery

Chapters 15 · Inherited instructions

Use additional code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Excludes 1

supervision of normal pregnancy (Z34.-)

O34 · Inherited instructions

Code first

any associated obstructed labor (O65.5)

Use additional code

code for specific condition

Excludes 2 · 4

Chapters 15 · Pregnancy, childbirth and the puerperium (O00-O9A)

Excludes 2

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

More specific codes

O34.211Maternal care for low transverse scar from previous cesarean delivery O34.212Maternal care for vertical scar from previous cesarean delivery O34.218Maternal care for other type scar from previous cesarean delivery O34.219Maternal care for unspecified type scar from previous cesarean delivery

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.

Official coding guidelines → · CMS ↗

First observed · 2015-10-01

Code history

Latest recorded change · FY2024

ChangedUnchanged

FY2024

Effective from 2023-10-01

Inherited rules changed

Maternal care for scar from previous cesarean delivery

Category — select a more specific code

CDC/NCHS · FY2024

All editions (19)

All editions	Effective from	Code history
FY2016	2015-10-01	First observed
FY2017	2016-10-01	Specificity changed · Inherited rules changed
FY2018	2017-10-01	No tabular change
FY2019	2018-10-01	Inherited rules changed
FY2020	2019-10-01	No tabular change
FY2020 · April	2020-04-01	No tabular change
FY2021	2020-10-01	No tabular change
FY2021 · 01-01	2021-01-01	No tabular change
FY2022	2021-10-01	No tabular change
FY2022 · 04-01	2022-04-01	No tabular change
FY2023	2022-10-01	No tabular change
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	Inherited rules changed
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	No tabular change
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

The official Tabular List has no additional instructions at this code level.

Review the instructions inherited from its parent categories below. Inherited instructions ↓

Review the official coding guidelines ↗

Inherited instructions

Chapters 15 · Pregnancy, childbirth and the puerperium (O00-O9A)

Excludes 1

supervision of normal pregnancy (Z34.-)

Excludes 2

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

Use additional code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Note

CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
1st trimester- less than 14 weeks 0 days
2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
3rd trimester- 28 weeks 0 days until delivery

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

More specific codes

O34.211Maternal care for low transverse scar from previous cesarean deliveryBillable / specific O34.212Maternal care for vertical scar from previous cesarean deliveryBillable / specific O34.218Maternal care for other type scar from previous cesarean deliveryBillable / specific O34.219Maternal care for unspecified type scar from previous cesarean deliveryBillable / specific

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
O34.22	Maternal care for cesarean scar defect (isthmocele)	Billable / specific
O34.29	Maternal care due to uterine scar from other previous surgery	Billable / specific

Official titles and instructions are preserved in their source language. Official sources ↗

References from other codes (1)

O75.82 · Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section

Code first · previous cesarean delivery (O34.21-)

O34.21UpcomingCategory · further specificity required

Maternal care for scar from previous cesarean delivery

Chapters 15 · Inherited instructions

Use additional code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Excludes 1

supervision of normal pregnancy (Z34.-)

O34 · Inherited instructions

Code first

any associated obstructed labor (O65.5)

Use additional code

code for specific condition

Excludes 2 · 4

Chapters 15 · Pregnancy, childbirth and the puerperium (O00-O9A)

Excludes 2

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

More specific codes

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Official coding guidelines → · CMS ↗

First observed · 2015-10-01

Code history

Latest recorded change · FY2024

ChangedUnchanged

FY2024

Effective from 2023-10-01

Inherited rules changed

Maternal care for scar from previous cesarean delivery

Category — select a more specific code

CDC/NCHS · FY2024

All editions (19)

All editions	Effective from	Code history
FY2016	2015-10-01	First observed
FY2017	2016-10-01	Specificity changed · Inherited rules changed
FY2018	2017-10-01	No tabular change
FY2019	2018-10-01	Inherited rules changed
FY2020	2019-10-01	No tabular change
FY2020 · April	2020-04-01	No tabular change
FY2021	2020-10-01	No tabular change
FY2021 · 01-01	2021-01-01	No tabular change
FY2022	2021-10-01	No tabular change
FY2022 · 04-01	2022-04-01	No tabular change
FY2023	2022-10-01	No tabular change
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	Inherited rules changed
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	No tabular change
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

The official Tabular List has no additional instructions at this code level.

Review the instructions inherited from its parent categories below. Inherited instructions ↓

Review the official coding guidelines ↗

Inherited instructions

Chapters 15 · Pregnancy, childbirth and the puerperium (O00-O9A)

Excludes 1

supervision of normal pregnancy (Z34.-)

Excludes 2

mental and behavioral disorders associated with the puerperium (F53.-)
obstetrical tetanus (A34)
postpartum necrosis of pituitary gland (E23.0)
puerperal osteomalacia (M83.0)

Use additional code

code, if applicable, from category Z3A, Weeks of gestation, to identify the specific week of the pregnancy, if known.

Note

CODES FROM THIS CHAPTER ARE FOR USE ONLY ON MATERNAL RECORDS, NEVER ON NEWBORN RECORDS
Codes from this chapter are for use for conditions related to or aggravated by the pregnancy, childbirth, or by the puerperium (maternal causes or obstetric causes)
Trimesters are counted from the first day of the last menstrual period. They are defined as follows:
1st trimester- less than 14 weeks 0 days
2nd trimester- 14 weeks 0 days to less than 28 weeks 0 days
3rd trimester- 28 weeks 0 days until delivery

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

More specific codes

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
O34.22	Maternal care for cesarean scar defect (isthmocele)	Billable / specific
O34.29	Maternal care due to uterine scar from other previous surgery	Billable / specific

Official titles and instructions are preserved in their source language. Official sources ↗

References from other codes (1)

O75.82 · Onset (spontaneous) of labor after 37 completed weeks of gestation but before 39 completed weeks gestation, with delivery by (planned) cesarean section

Code first · previous cesarean delivery (O34.21-)