Q01 — Encephalocele
Is Q01 billable?
No — Q01 is a non-billable header code. Q01 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 5 billable codes beneath Q01.
Q01 at a glance
| Code | Q01 |
|---|---|
| Description | Encephalocele |
| 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 Q01 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- Meckel-Gruber syndrome (Q61.9)
Includes
Conditions classified to Q01.
- Arnold-Chiari syndrome, type III
- encephalocystocele
- encephalomyelocele
- hydroencephalocele
- hydromeningocele, cranial
- meningocele, cerebral
- meningoencephalocele
Excludes2 — not included here — inherited from Chapter 17
The conditions below are not part of Q01, but a patient may have both at the same time. When documentation supports it, Q01 and the excluded code may both be reported.
- inborn errors of metabolism (E70-E88)
What codes fall under Q01? (5)
How long has Q01 existed?
Q01 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 Q01?
ICD-10-CM declares these codes mutually exclusive with Q01 — exactly one of each pair can be correct for a given encounter.