Q17.8 Other specified congenital malformations of ear

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

Applicable to

• Congenital absence of lobe of ear

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)

• 744.21 Absence of ear lobe, congenital (approximate)
• 744.29 Other specified anomalies of ear (approximate)

Diagnosis Index entries for Q17.8

• Abnormal, abnormality, abnormalities › course, eustachian tube
• Absence (of) (organ or part) (complete or partial) › ear, congenital › lobe, lobule
• Agenesis › ear › lobe
• Anomaly, anomalous (congenital) (unspecified type) › auditory canal
• Anomaly, anomalous (congenital) (unspecified type) › auricle › ear
• Anomaly, anomalous (congenital) (unspecified type) › eustachian tube
• Atresia, atretic › eustachian tube
• Darwin's tubercle
• Deformity › eustachian tube (congenital) NEC
• Dilatation › eustachian tube, congenital
• Distortion (s) (congenital) › eustachian tube
• Double › auditory canal
• Fissure, fissured › ear, lobule, congenital
• Hypoplasia, hypoplastic › auditory canal
• Hypoplasia, hypoplastic › eustachian tube
• Hypoplasia, hypoplastic › osseous meatus (ear)
• Malformation (congenital) › ear › external › specified type NEC
• Malformation (congenital) › ear › specified type NEC
• Malposition › congenital › auditory canal
• Malposition › congenital › eustachian tube
• Stricture › eustachian tube › congenital
• Tubercle › Darwin's

Nearby codes

• Q17.1 Macrotia
• Q17.2 Microtia
• Q17.3 Other misshapen ear
• Q17.4 Misplaced ear
• Q17.5 Prominent ear
• Q17.8 Other specified congenital malformations of ear (this code)
• Q17.9 Congenital malformation of ear, unspecified