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Q05.4

Unspecified spina bifida with hydrocephalus

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 9 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 2 never code together
Q05code
Excludes1
  • Arnold-Chiari syndrome, type II (Q07.0-)Q07.0-
  • spina bifida occulta (Q76.0)Q76.0

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 9
Q05code
Includes
  • hydromeningocele (spinal)
  • meningocele (spinal)
  • meningomyelocele
  • myelocele
  • myelomeningocele
  • rachischisis
  • spina bifida (aperta)(cystica)
  • syringomyelocele
Use additional code
  • code for any associated paraplegia (paraparesis) (G82.2-)G82.2-
Index entries leading here 2
  • Hydrocephalus (acquired) (external) (internal) (malignant) (recurrent) G91.9
    • congenital (external) (internal) Q03.9
      • with spina bifida Q05.4
  • Spina bifida (aperta) Q05.9
    • with hydrocephalus NEC Q05.4
Alongside this code 9 same parent — Q05
Q05.0 Cervical spina bifida with hydrocephalus Q05.1 Thoracic spina bifida with hydrocephalus Q05.2 Lumbar spina bifida with hydrocephalus Q05.3 Sacral spina bifida with hydrocephalus Q05.5 Cervical spina bifida without hydrocephalus Q05.6 Thoracic spina bifida without hydrocephalus Q05.7 Lumbar spina bifida without hydrocephalus Q05.8 Sacral spina bifida without hydrocephalus Q05.9 Spina bifida, unspecified
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

CMS22HCC72 CMS28HCC182 ESRD21HCC72 ESRD24HCC72 RX08HCC155

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
Q05
Block
Q00-Q07
Siblings
9

Present FY2024–FY2027.