O35.03Header code — not billable
Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts
Short description: Mat care cnsl malf/damag fts, choroid plexus cysts
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O35
- Effective date
- October 1, 2026
Related codes in category O35
O35Maternal care for known or suspected fetal abnlt and damageO35.0Maternal care for (suspected) cnsl malformation in fetusO35.00Mat care (suspected) cnsl malf/damag fts, unspecifiedO35.00X0Mat care (suspected) cnsl malf/damag fts, unspecified, unspYesO35.00X1Mat care cnsl malf/damag fts, unspecified, fetus 1YesO35.00X2Mat care cnsl malf/damag fts, unspecified, fetus 2YesO35.00X3Mat care cnsl malf/damag fts, unspecified, fetus 3YesO35.00X4Mat care cnsl malf/damag fts, unspecified, fetus 4YesO35.00X5Mat care cnsl malf/damag fts, unspecified, fetus 5YesO35.00X9Mat care cnsl malf/damag fts, unspecified, other fetusYesO35.01Mat care cnsl malf/damag fts, agenesis of corpus callosumO35.01X0Mat care cnsl malf/damag fts, agenesis corpus callosum, unspYes
Frequently asked questions
What is ICD-10 code O35.03?
O35.03 is an ICD-10-CM diagnosis code for Maternal care for (suspected) central nervous system malformation or damage in fetus, choroid plexus cysts.
Is O35.03 a billable code?
No. O35.03 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is O35.03 in?
O35.03 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O35.03 become effective?
O35.03 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O35.03?
O35.03 belongs to category O35, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.