Q07.0 ICD-10-CA code: Arnold-Chiari syndrome
Q07.0 is the ICD-10-CA code for “Arnold-Chiari syndrome” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
Q07.0Arnold-Chiari syndrome
Short description: Arnold Chiari syndrome
ICD-10-CA · Canada · Also written Q070
Index terms
Entries in CIHI’s alphabetical index that lead to Q07.0. Searching the index by the condition the note names is how coders reach this code.
- Arnold Chiari obstruction or syndrome
- Obstruction, obstructed, obstructive, Arnold Chiari
Notes for Q07.0
As CIHI prints them, with any note Q07.0 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Familial dysautonomia [Riley-Day] (G90.1)neurofibromatosis (nonmalignant) (Q85.0)From Q07 Other congenital malformations of nervous system
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q07.0 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q00-Q07Congenital malformations of the nervous system
- 3Category Q07Other congenital malformations of nervous system
- 4Valid code Q07.0Arnold-Chiari syndrome
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code Q07.0 mean?
Q07.0 is the ICD-10-CA code for “Arnold-Chiari syndrome” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is Q07.0 in ICD-10-CA?
Q07.0 sits under Q07 Other congenital malformations of nervous system, within Q00-Q07 Congenital malformations of the nervous system, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
What coding notes apply to Q07.0?
ICD-10-CA lists Excludes notes for Q07.0, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.