Q05.1 – Thoracic spina bifida with hydrocephalus

ICD-10-CM 2027 diagnosis code · Congenital malformations of the nervous system

Billable code

ICD-10-CM code Q05.1

Code: Q05.1 (claims format: Q051)
Description: Thoracic spina bifida with hydrocephalus
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
Block: Q00-Q07 Congenital malformations of the nervous system
Parent codes: Q05

Notes for Q05.1

Applicable to:

Dorsal spina bifida with hydrocephalus
Thoracolumbar spina bifida with hydrocephalus

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Q05 – Spina bifida

Includes:

hydromeningocele (spinal)
meningocele (spinal)
meningomyelocele
myelocele
myelomeningocele
rachischisis
spina bifida (aperta)(cystica)
syringomyelocele

Excludes1 (not coded here):

Arnold-Chiari syndrome, type II (Q07.0-)
spina bifida occulta (Q76.0)

Use additional code:

code for any associated paraplegia (paraparesis) (G82.2-)

Index terms for Q05.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Q05

Q05.0 – Cervical spina bifida with hydrocephalusBillable
Q05.2 – Lumbar spina bifida with hydrocephalusBillable
Q05.3 – Sacral spina bifida with hydrocephalusBillable
Q05.4 – Unspecified spina bifida with hydrocephalusBillable
Q05.5 – Cervical spina bifida without hydrocephalusBillable
Q05.6 – Thoracic spina bifida without hydrocephalusBillable
Q05.7 – Lumbar spina bifida without hydrocephalusBillable
Q05.8 – Sacral spina bifida without hydrocephalusBillable
Q05.9 – Spina bifida, unspecifiedBillable

Frequently asked questions

What is ICD-10 code Q05.1?

Q05.1 is the ICD-10-CM code for thoracic spina bifida with hydrocephalus, in the block Q00-Q07 (Congenital malformations of the nervous system).

Is Q05.1 a billable code?

Yes. Q05.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Q05.1 belong to?

It belongs to category Q05 – Spina bifida.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.