Q17.1 Macrotia

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

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)

• 744.22 Macrotia

Diagnosis Index entries for Q17.1

• Large › ear, congenital
• Macrotia (external ear) (congenital)
• Malformation (congenital) › ear › external › macrotia

Nearby codes

• Q17 Other congenital malformations of ear
• Q17.0 Accessory auricle
• Q17.1 Macrotia (this code)
• Q17.2 Microtia
• Q17.3 Other misshapen ear
• Q17.4 Misplaced ear
• Q17.5 Prominent ear
• Q17.8 Other specified congenital malformations of ear