O34.42 is the authoritative medical code for Maternal care for other abnormalities of cervix, second trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for maternal care for other abnormalities of cervix, second trimester (ICD-10-CM O34.42), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Maternal care for other abnormalities of cervix, second trimester is a billable ICD-10-CM diagnosis code O34.42. 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.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for O34.42 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- 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
Underlying conditions that must be sequenced before this code.
- any associated obstructed labor O65.5
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code for specific condition
Frequently Asked Questions (FAQ) & Clinical Guidance
Does O34.42 need to be sequenced after another code?
Yes. Code first: any associated obstructed labor (O65.5).
Is an additional code needed with O34.42?
Use additional code(s) to specify: code for specific condition.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to O34.42 in its code family, with their registry titles.
- O34 — Maternal care for abnormality of pelvic organs
- O34.0 — Maternal care for congenital malformation of uterus
- O34.01 — Maternal care for unspecified congenital malformation of uterus, first trimester
- O34.02 — Maternal care for unspecified congenital malformation of uterus, second trimester
- O34.03 — Maternal care for unspecified congenital malformation of uterus, third trimester
- O34.1 — Maternal care for benign tumor of corpus uteri
- O34.10 — Maternal care for benign tumor of corpus uteri, unspecified trimester
- 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
View all 40 codes in the O34 family