ICDcodes.org
FY2027

O34.0 — Maternal care for congenital malformation of uterus

Not billable

Is O34.0 billable?

No — O34.0 is a non-billable header code. O34.0 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath O34.0.

O34.0 at a glance

CodeO34.0
DescriptionMaternal care for congenital malformation of uterus
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is O34.0 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to O34.0. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Double › uterus › in pregnancy or childbirth
  • Pregnancy › complicated by › bicornis or bicornuate uterus (single) (uterine)
  • Pregnancy › complicated by › double uterus (single) (uterine)
  • Pregnancy › complicated by › malformation › uterus (single) (uterine)
  • Pregnancy › complicated by › abnormal, abnormality › uterus › congenital (single) (uterine)

Inclusion terms

Alternative wording in documentation that is classified to O34.0.

  • Maternal care for double uterus
  • Maternal care for uterus bicornis

Excludes1 — never code together — inherited from Chapter 15

The conditions below can never be reported together with O34.0 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • supervision of normal pregnancy (Z34.-)

Code first — inherited from O34

The underlying condition below must be sequenced before O34.0. O34.0 describes a manifestation and cannot be the principal or first-listed diagnosis.

  • any associated obstructed labor (O65.5)

Use additional code — inherited from Chapter 15

Report an additional code alongside O34.0 to fully describe the condition. O34.0 is sequenced first.

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

Use additional code — inherited from O34

Report an additional code alongside O34.0 to fully describe the condition. O34.0 is sequenced first.

  • code for specific condition

Excludes2 — not included here — inherited from Chapter 15

The conditions below are not part of O34.0, but a patient may have both at the same time. When documentation supports it, O34.0 and the excluded code may both be reported.

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

What codes fall under O34.0? (4)

How long has O34.0 existed?

O34.0 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to O34.0?

What other codes are in the O34 family? (9)