ICD-10-CM › Q00-QA1 › Q00-Q07 › Q03 Congenital hydrocephalus › Q03.1
Atresia of foramina of Magendie and Luschka
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 Atresia of foramina of Magendie and Luschka
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 Q03 Congenital hydrocephalus
Excludes1 - never coded here
- Arnold-Chiari syndrome, type II (Q07.0-)
- acquired hydrocephalus (G91.-)
- hydrocephalus due to congenital toxoplasmosis (P37.1)
- hydrocephalus with spina bifida (Q05.0-Q05.4)
Includes
- hydrocephalus in newborn
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.
- Lump
- Missing
- Retained
- Amputation
- Impervious
- Imperforate
- Macrohydrocephalus
- Water > on > brain
- Loss > organ or part
- Absence > toe > with foot
- Dropsy, dropsical > brain
- Absence > congenital > lumen
- Valve, valvular > congenital NEC
- Blind > tract or tube, congenital NEC
- Stricture > organ or site, congenital NEC
- Constriction > organ or site, congenital NEC
- Obliteration > organ or site, congenital NEC
- Block, blocked > organ or site, congenital NEC
- Stenosis, stenotic > organ or site, congenital NEC
- Occlusion, occluded > organ or site, congenital NEC
- Strangulation, strangulated > organ or site, congenital NEC
- Contraction, contracture, contracted > organ or site, congenital NEC
- Obstruction, obstructed, obstructive > organ or site, congenital NEC
- Cyst > Dandy-Walker
- Dandy-Walker syndrome
- Syndrome > Dandy-Walker
- Deformity > Dandy-Walker
- Atresia, atretic > foramen of > Luschka
- Atresia, atretic > foramen of > Magendie
- Block, blocked > foramen Magendie > congenital
- Hydrocephalus > foramen Magendie block > congenital
Codes in the same group
| Code | Description | Status |
|---|---|---|
| Q03.0 | Malformations of aqueduct of Sylvius | Valid |
| Q03.8 | Other congenital hydrocephalus | Valid |
| Q03.9 | Congenital hydrocephalus, unspecified | Valid |