Coding and coverage · ICD-10-CM

Q07 Other congenital malformations of nervous system

Not billable (header)Chapter 17

Report one of the more specific codes below.

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Codes under this one

  • Q07.0 Arnold-Chiari syndromeHeader
  • Q07.8 Other specified congenital malformations of nervous system
  • Q07.9 Congenital malformation of nervous system, unspecified

Instructional notes

Chapter 17

Excludes2Not included here: the patient may have both; report both when both are present.
  • inborn errors of metabolism (E70-E88)
Notes
  • Codes from this chapter are not for use on maternal records

This code

Excludes2Not included here: the patient may have both; report both when both are present.
  • congenital central alveolar hypoventilation syndrome (G47.35)
  • familial dysautonomia [Riley-Day] (G90.1)
  • neurofibromatosis (nonmalignant) (Q85.0-)

Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1) · Q00-Q07 Congenital malformations of the nervous system (Q00-Q07)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.