Q07.8 ICD-10-CA code: Other specified congenital malformations of nervous system

Q07.8 is the ICD-10-CA code for “Other specified congenital malformations of nervous system” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

Q07.8

Other specified congenital malformations of nervous system

Short description: Oth spec congen malform nervous system

ICD-10-CA · Canada · Also written Q078

Index terms

Entries in CIHI’s alphabetical index that lead to Q07.8. Searching the index by the condition the note names is how coders reach this code.

  • Agenesis, nerve
  • Gunn's syndrome
  • Agenesis, nuclear
  • Syndrome, jaw winking
  • Marcus Gunn's syndrome
  • Phenomenon, jaw winking
  • Distortion (congenital), nerve
  • Malposition, congenital, nerve
  • Agenesis, nervous system, part NEC
  • Jaw winking phenomenon or syndrome
  • Deformity, choroid (congenital), plexus
  • Malposition, congenital, brachial plexus
  • Deformity, spinal, nerve root (congenital)
  • Malposition, congenital, nervous system NEC
  • Malformation (congenital), spinal, nerve root
  • Accessory (congenital), nervous system, part NEC
  • Displacement, displaced, brachial plexus (congenital)
  • Malformation (congenital), choroid (congenital), plexus
  • Adhesions, adhesive (postinfective), meninges, congenital
  • Anomaly, anomalous (congenital) (unspecified type), nerve, optic
  • Anomaly, anomalous (congenital) (unspecified type), optic, nerve
  • Anomaly, anomalous (congenital) (unspecified type), acoustic nerve
  • Anomaly, anomalous (congenital) (unspecified type), choroid, plexus
  • Anomaly, anomalous (congenital) (unspecified type), nerve, acoustic
  • Anomaly, anomalous (congenital) (unspecified type), sense organs NEC
  • Anomaly, anomalous (congenital) (unspecified type), spine, spinal NEC, nerve root
  • Anomaly, anomalous (congenital) (unspecified type), meningeal bands or folds, constriction of

Notes for Q07.8

As CIHI prints them, with any note Q07.8 takes from the headings above it.

Includes

  • Agenesis of nerveDisplacement of brachial plexusJaw-winking syndromeMarcus Gunn's syndrome

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 Q07.8 sits

  1. 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  2. 2Block Q00-Q07Congenital malformations of the nervous system
  3. 3Category Q07Other congenital malformations of nervous system
  4. 4Valid code Q07.8Other specified congenital malformations of nervous system

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 Q07.8 mean?

Q07.8 is the ICD-10-CA code for “Other specified congenital malformations of nervous system” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is Q07.8 in ICD-10-CA?

Q07.8 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 Q07.8?

ICD-10-CA lists Includes, Excludes notes for Q07.8, 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.