Q17.9 Congenital malformation of ear, unspecified

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

Applicable to

• Congenital anomaly of ear NOS

Applies from Q17 Other congenital malformations of ear

Excludes1 (never code together)

• congenital malformations of ear with impairment of hearing (Q16.0-Q16.9)
• preauricular sinus (Q18.1)

MS-DRG index

Defines the logic of DRG(s) 154-156 in MDC 03.

Approximate ICD-9-CM (GEMs)

• 744.3 Unspecified anomaly of ear

Diagnosis Index entries for Q17.9

• Anomaly, anomalous (congenital) (unspecified type) › ear (external)
• Anomaly, anomalous (congenital) (unspecified type) › tragus
• Deformity › ear (acquired) › congenital (external)
• Deformity › pinna, acquired › congenital
• Malformation (congenital) › ear
• Malformation (congenital) › ear › external

Nearby codes

• Q17.2 Microtia
• Q17.3 Other misshapen ear
• Q17.4 Misplaced ear
• Q17.5 Prominent ear
• Q17.8 Other specified congenital malformations of ear
• Q17.9 Congenital malformation of ear, unspecified (this code)