Q03.0

ICD-10Billable

Malformations of aqueduct of Sylvius

Official ICD-10-CM descriptor (FY2026)

Malformations of aqueduct of Sylvius

Q03.0 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Anomaly of aqueduct of Sylvius
Obstruction of aqueduct of Sylvius, congenital
Stenosis of aqueduct of Sylvius

Related codes in Q03

Where this code sits

Chapter: 17. Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
Block: Congenital malformations of the nervous system (Q00-Q07)
Parent code: Q03

Krasyn AI Coder

Get code suggestions automatically as you type notes. Free for 50 analyses.

Install for Chrome — free

Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.