Coding and coverage · ICD-10-CM

Q07 › Q07.0

Q07.01 Arnold-Chiari syndrome with spina bifida

BillableCMS-HCC V28: HCC 182Chapter 17
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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

Q07

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-)

Q07.0

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • Arnold-Chiari syndrome, type III (Q01.-)
  • Arnold-Chiari syndrome, type IV (Q04.8)
Inclusion terms
  • Arnold-Chiari syndrome, type II

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.