Q07.00: Arnold-Chiari syndrome without spina bifida or hydrocephalus
Q07.00 is a billable, specific ICD-10-CM code for arnold-chiari syndrome without spina bifida or hydrocephalus. It is valid for submission on a claim.
Check Q07.00 with the rest of the claim: free scrubberExcludes1 inherited from the categories above Q07.00
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above Q07.00
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with Q07.00
Their own Excludes1 notes name this code, so the conflict is not listed above.
- G91Hydrocephalus
Risk adjustment
Q07.00 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 182 Spinal Cord Disorders/Injuries0.478 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
Q07.00 is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
- A54969Billing and Coding: Nerve Conduction Studies and Electromyography
- A56619Billing and Coding: Nerve Conduction Studies and Electromyography
Alphabetic index entries that lead here
- Arnold-Chiari disease, obstruction or syndrome(type II)
Code history
Unchanged in every release from FY2024 to FY2027.