Q05.4Billable
Unspecified spina bifida with hydrocephalus
- Chapter
- 17. Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q05
- Effective date
- October 1, 2026
Related codes in category Q05
Q05Spina bifidaQ05.0Cervical spina bifida with hydrocephalusYesQ05.1Thoracic spina bifida with hydrocephalusYesQ05.2Lumbar spina bifida with hydrocephalusYesQ05.3Sacral spina bifida with hydrocephalusYesQ05.5Cervical spina bifida without hydrocephalusYesQ05.6Thoracic spina bifida without hydrocephalusYesQ05.7Lumbar spina bifida without hydrocephalusYesQ05.8Sacral spina bifida without hydrocephalusYesQ05.9Spina bifida, unspecifiedYes
Frequently asked questions
What is ICD-10 code Q05.4?
Q05.4 is an ICD-10-CM diagnosis code for Unspecified spina bifida with hydrocephalus.
Is Q05.4 a billable code?
Yes. Q05.4 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Q05.4 in?
Q05.4 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.
When did Q05.4 become effective?
Q05.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Q05.4?
Q05.4 belongs to category Q05, which includes 10 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.