Q07.9: Congenital malformation of nervous system, unspecified
Q07.9 is a billable, specific ICD-10-CM code for congenital malformation of nervous system, unspecified. It is valid for submission on a claim.
Check Q07.9 with the rest of the claim: free scrubberInclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Congenital anomaly NOS of nervous system
- Congenital deformity NOS of nervous system
- Congenital disease or lesion NOS of nervous system
Excludes2 inherited from the categories above Q07.9
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with Q07.9
Their own Excludes1 notes name this code, so the conflict is not listed above.
- G91Hydrocephalus
Risk adjustment
Q07.9 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
Q07.9 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A54111Billing and Coding: Speech Language Pathology (SLP) Services: Communication Disorders
Alphabetic index entries that lead here
- Anomaly, anomalous›gyri
- Anomaly, anomalous›meningeal bands or folds
- Anomaly, anomalous›meninges
- Anomaly, anomalous›nerve
- Anomaly, anomalous›nervous system(central)
- Deformity›meninges or membrane(congenital)
- Deformity›nervous system(congenital)
- Dysplasia›brain
- Encephalopathy›congenital
- Lesion›nervous system, congenital
- Maldevelopment›brain
- Malformation›dura
Code history
Unchanged in every release from FY2024 to FY2027.