O34.40 is the authoritative medical code for Maternal care for other abnormalities of cervix, unspecified trimester. This classification is used in medical billing and clinical recording to specify the clinical criteria for maternal care for other abnormalities of cervix, unspecified trimester (ICD-10-CM O34.40), 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, unspecified trimester is a billable ICD-10-CM diagnosis code O34.40. 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 O34.40 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 O34.40 need to be sequenced after another code?
Yes. Code first: any associated obstructed labor (O65.5).
Is an additional code needed with O34.40?
Use additional code(s) to specify: code for specific condition.
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as O34.40, 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
- 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
- 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
- O34.3 — Maternal care for cervical incompetence
- O34.30 — Maternal care for cervical incompetence, unspecified trimester
- O34.31 — Maternal care for cervical incompetence, first trimester
- O34.32 — Maternal care for cervical incompetence, second trimester
- O34.33 — Maternal care for cervical incompetence, third trimester
- O34.4 — Maternal care for other abnormalities of cervix
- O34.41 — Maternal care for other abnormalities of cervix, first trimester
- O34.42 — Maternal care for other abnormalities of cervix, second trimester
- O34.43 — Maternal care for other abnormalities of cervix, third trimester
- O34.5 — Maternal care for other abnormalities of gravid uterus
- O34.51 — Maternal care for incarceration of gravid uterus
- O34.511 — Maternal care for incarceration of gravid uterus, first trimester
- O34.512 — Maternal care for incarceration of gravid uterus, second trimester
- O34.513 — Maternal care for incarceration of gravid uterus, third trimester
- O34.519 — Maternal care for incarceration of gravid uterus, unspecified trimester
- O34.52 — Maternal care for prolapse of gravid uterus
- O34.521 — Maternal care for prolapse of gravid uterus, first trimester
- O34.522 — Maternal care for prolapse of gravid uterus, second trimester
- O34.523 — Maternal care for prolapse of gravid uterus, third trimester
- O34.529 — Maternal care for prolapse of gravid uterus, unspecified trimester
- O34.53 — Maternal care for retroversion of gravid uterus
- O34.531 — Maternal care for retroversion of gravid uterus, first trimester
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code O29.40
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ICD Code O32.40
Maternal care for high head at term, not applicable or unspecified
ICD Code O33.40
Maternal care for disproportion of mixed maternal and fetal origin, not applicable or unspecified
ICD Code O35.40
Maternal care for (suspected) damage to fetus from alcohol, not applicable or unspecified
ICD Code O36.40
Maternal care for intrauterine death, not applicable or unspecified