Arnold-Chiari syndrome

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 4 more specific codes instead:

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
Q07.03 Arnold-Chiari syndrome with spina bifida and hydrocephalus

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2012 Added to the draft code set draft Arnold-Chiari syndrome

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from Q07 Other congenital malformations of nervous system

Excludes2 - not included here

congenital central alveolar hypoventilation syndrome (G47.35)
familial dysautonomia [Riley-Day] (G90.1)
neurofibromatosis (nonmalignant) (Q85.0-)

Codes in the same group

Code	Description	Status
Q07.8	Other specified congenital malformations of nervous system	Valid
Q07.9	Congenital malformation of nervous system, unspecified	Valid