Q40.9 Congenital malformation of upper alimentary tract, unspecified

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Congenital anomaly of upper alimentary tract
• Congenital deformity of upper alimentary tract

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 750.9 Unspecified anomaly of upper alimentary tract (approximate)

Diagnosis Index entries for Q40.9

• Anomaly, anomalous (congenital) (unspecified type) › alimentary tract › upper
• Anomaly, anomalous (congenital) (unspecified type) › digestive organ (s) or tract › upper
• Deformity › alimentary tract, congenital › upper
• Malformation (congenital) › alimentary tract › upper

Nearby codes

• Q40.0 Congenital hypertrophic pyloric stenosis
• Q40.1 Congenital hiatus hernia
• Q40.2 Other specified congenital malformations of stomach
• Q40.3 Congenital malformation of stomach, unspecified
• Q40.8 Other specified congenital malformations of upper alimentary tract
• Q40.9 Congenital malformation of upper alimentary tract, unspecified (this code)