Is Q03 a billable code?
No. Q03 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Q03: Congenital hydrocephalus
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Q03 groups related diagnoses under congenital hydrocephalus. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Q03 questions
What does Q03 mean?
Q03 is the ICD-10-CM code for Congenital hydrocephalus. It is in chapter 17, Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.