O33.6XX4
✓ Billable
Maternal care for disproportion due to hydrocephalic fetus, fetus 4
ICD-10-CM · FY2026 · Pregnancy, Childbirth and the Puerperium
Code
O33.6XX4
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Pregnancy, Childbirth and the Puerperium
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code O33.6XX4?
ICD-10-CM code O33.6XX4 represents Maternal care for disproportion due to hydrocephalic fetus, fetus 4. It is a billable diagnosis code in the Pregnancy, Childbirth and the Puerperium chapter, effective October 1, 2025 – September 30, 2026.
Is O33.6XX4 billable?
Yes. O33.6XX4 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is O33.6XX4 in?
O33.6XX4 belongs to the Pregnancy, Childbirth and the Puerperium chapter (O00–O9A) of ICD-10-CM.
Related codes in the O33 category
O33
Maternal care for disproportion
Non-billable
O33.0
Maternal care for disproportion due to deformity of maternal pelvic bones
Billable
O33.1
Maternal care for disproportion due to generally contracted pelvis
Billable
O33.2
Maternal care for disproportion due to inlet contraction of pelvis
Billable
O33.3
Maternal care for disproportion due to outlet contraction of pelvis
Non-billable
O33.4
Maternal care for disproportion of mixed maternal and fetal origin
Non-billable
O33.5
Maternal care for disproportion due to unusually large fetus
Non-billable
O33.6
Maternal care for disproportion due to hydrocephalic fetus
Non-billable
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