Q03 — Congenital hydrocephalus
Is Q03 billable?
No — Q03 is a non-billable header code. Q03 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 4 billable codes beneath Q03.
Q03 at a glance
| Code | Q03 |
|---|---|
| Description | Congenital hydrocephalus |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with Q03 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Includes
Conditions classified to Q03.
- hydrocephalus in newborn
Excludes2 — not included here — inherited from Chapter 17
The conditions below are not part of Q03, but a patient may have both at the same time. When documentation supports it, Q03 and the excluded code may both be reported.
- inborn errors of metabolism (E70-E88)
What codes fall under Q03? (4)
How long has Q03 existed?
Q03 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with Q03?
ICD-10-CM declares these codes mutually exclusive with Q03 — exactly one of each pair can be correct for a given encounter.