Q01Header code — not billable

Encephalocele

Chapter
17. Congenital malformations, deformations and chromosomal abnormalities
Category
Q01
Effective date
October 1, 2026

Related codes in category Q01

Q01.0Frontal encephaloceleYesQ01.1Nasofrontal encephaloceleYesQ01.2Occipital encephaloceleYesQ01.8Encephalocele of other sitesYesQ01.9Encephalocele, unspecifiedYes

Frequently asked questions

What is ICD-10 code Q01?

Q01 is an ICD-10-CM diagnosis code for Encephalocele.

Is Q01 a billable code?

No. Q01 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 Q01 in?

Q01 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.

When did Q01 become effective?

Q01 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Q01?

Q01 belongs to category Q01, which includes 5 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.