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Q07.03

Arnold-Chiari syndrome with spina bifida and hydrocephalus

Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 5 never code together
Q07code
Excludes2
  • congenital central alveolar hypoventilation syndrome (G47.35)G47.35
  • familial dysautonomia [Riley-Day] (G90.1)G90.1
  • neurofibromatosis (nonmalignant) (Q85.0-)Q85.0-
Q07.0code
Excludes1
  • Arnold-Chiari syndrome, type III (Q01.-)Q01.-
  • Arnold-Chiari syndrome, type IV (Q04.8)Q04.8

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

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1
Q07.0code
Inclusion terms
  • Arnold-Chiari syndrome, type II
Index entries leading here 1
  • Arnold-Chiari disease, obstruction or syndrome (type II) Q07.00
Alongside this code 3 same parent — Q07.0
Q07.00 Arnold-Chiari syndrome without spina bifida or hydrocephalus Q07.01 Arnold-Chiari syndrome with spina bifida Q07.02 Arnold-Chiari syndrome with hydrocephalus
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
Q07.0
Block
Q00-Q07
Siblings
3

Present FY2024–FY2027.