O22.5Header code — not billable
Cerebral venous thrombosis in pregnancy
- Chapter
- 15. Pregnancy, childbirth and the puerperium
- Category
- O22
- Effective date
- October 1, 2026
Related codes in category O22
O22Venous complications and hemorrhoids in pregnancyO22.0Varicose veins of lower extremity in pregnancyO22.00Varicose veins of low extrm in pregnancy, unsp trimesterYesO22.01Varicose veins of low extrm in pregnancy, first trimesterYesO22.02Varicose veins of low extrm in pregnancy, second trimesterYesO22.03Varicose veins of low extrm in pregnancy, third trimesterYesO22.1Genital varices in pregnancyO22.10Genital varices in pregnancy, unspecified trimesterYesO22.11Genital varices in pregnancy, first trimesterYesO22.12Genital varices in pregnancy, second trimesterYesO22.13Genital varices in pregnancy, third trimesterYesO22.2Superficial thrombophlebitis in pregnancy
Frequently asked questions
What is ICD-10 code O22.5?
O22.5 is an ICD-10-CM diagnosis code for Cerebral venous thrombosis in pregnancy.
Is O22.5 a billable code?
No. O22.5 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 O22.5 in?
O22.5 falls under Chapter 15: Pregnancy, childbirth and the puerperium.
When did O22.5 become effective?
O22.5 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to O22.5?
O22.5 belongs to category O22, 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.