ICD-10-CM › Q00-QA1 › Q00-Q07 › Q01 Encephalocele › Q01.1
Nasofrontal encephalocele
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Nasofrontal encephalocele
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from Q01 Encephalocele
Excludes1 - never coded here
- Meckel-Gruber syndrome (Q61.9)
Includes
- Arnold-Chiari syndrome, type III
- encephalocystocele
- encephalomyelocele
- hydroencephalocele
- hydromeningocele, cranial
- meningocele, cerebral
- meningoencephalocele
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Cleft
- Patent
- Window
- Aplasia
- Missing
- Patulous
- Abnormity
- Asymmetry
- Dysplasia
- Amputation
- Herniation
- Lobulation
- Nonclosure
- Cephalocele
- Fold, folds
- Rudimentary
- Malformation
- Birth > defect
- Maldevelopment
- Sarcoepiplocele
- Septum, septate
- Hydrencephalocele
- Encephalocystocele
- Encephalomyelocele
- Hydroencephalocele
- Imperfect > fusion
- Deformity > cranium
- Lesion > congenital
- Encephalomeningocele
- Loss > organ or part
- Meningoencephalocele
- Pervious, congenital
- Elongated, elongation
- Open, opening > false
- Meningocele > cerebral
- Hydrencephalomeningocele
- Implantation > anomalous
- Syndrome > Arnold-Chiari
- Absence > toe > with foot
- Anomaly, anomalous > head
Showing 40 of 136 index phrases.
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q01.0 | Frontal encephalocele | Valid |
| Q01.2 | Occipital encephalocele | Valid |
| Q01.8 | Encephalocele of other sites | Valid |
| Q01.9 | Encephalocele, unspecified | Valid |