Q17.8 is the authoritative medical code for Other specified congenital malformations of ear. This classification is used in medical billing and clinical recording to specify the clinical criteria for other specified congenital malformations of ear (ICD-10-CM Q17.8), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Other specified congenital malformations of ear is a billable ICD-10-CM diagnosis code Q17.8. Inclusion terms: Congenital absence of lobe of ear. Excludes1 (not coded here): congenital malformations of ear with impairment of hearing Q16.0-Q16.9; preauricular sinus Q18.1. Excludes2 (not included here): cleft lip and cleft palate Q35-Q37; congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4); congenital malformation of larynx Q31.-; congenital malformation of lip NEC Q38.0; congenital malformation of nose Q30.-; congenital malformation of parathyroid gland Q89.2; congenital malformation of thyroid gland Q89.2.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Q17.8 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- Congenital absence of lobe of ear
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- congenital malformations of ear with impairment of hearing Q16.0-Q16.9
- preauricular sinus Q18.1
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- cleft lip and cleft palate Q35-Q37
- congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)
- congenital malformation of larynx Q31.-
- congenital malformation of lip NEC Q38.0
- congenital malformation of nose Q30.-
- congenital malformation of parathyroid gland Q89.2
- congenital malformation of thyroid gland Q89.2
Frequently Asked Questions (FAQ) & Clinical Guidance
What can't be coded together with Q17.8?
Per official ICD-10-CM Excludes1 instructions, Q17.8 must not be reported together with: congenital malformations of ear with impairment of hearing (Q16.0-Q16.9); preauricular sinus (Q18.1).
Can Q17.8 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, Q17.8 and the following are not considered part of each other and may both be reported when both conditions are present: cleft lip and cleft palate (Q35-Q37); congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4); congenital malformation of larynx (Q31.-); congenital malformation of lip NEC (Q38.0).
What conditions are included under Q17.8?
Other specified congenital malformations of ear includes: Congenital absence of lobe of ear.
Nearest Codes in This Family
Official ICD-10-CM classifications closest to Q17.8 in its code family, with their registry titles.
- Q17 — Other congenital malformations of ear
- Q17.0 — Accessory auricle
- Q17.1 — Macrotia
- Q17.2 — Microtia
- Q17.3 — Other misshapen ear
- Q17.4 — Misplaced ear
- Q17.5 — Prominent ear
- Q17.9 — Congenital malformation of ear, unspecified
Indexed Clinical Terms (22)
Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.
- 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 NEC (congenital)
- 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