Q17.8
Other specified congenital malformations of ear
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 9 never code together
Q17code
Excludes1
- congenital malformations of ear with impairment of hearing (Q16.0-Q16.9)Q16.0-Q16.9
- preauricular sinus (Q18.1)Q18.1
Q10-Q18block
Excludes2
- cleft lip and cleft palate (Q35-Q37)Q35-Q37
- congenital malformation of cervical spine (Q05.0, Q05.5, Q67.5, Q76.0-Q76.4)Q05.0Q05.5Q67.5Q76.0-Q76.4
- congenital malformation of larynx (Q31.-)Q31.-
- congenital malformation of lip NEC (Q38.0)Q38.0
- congenital malformation of nose (Q30.-)Q30.-
- congenital malformation of parathyroid gland (Q89.2)Q89.2
- congenital malformation of thyroid gland (Q89.2)Q89.2
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
Q17.8code
Inclusion terms
- Congenital absence of lobe of ear
Index entries leading here 16
- Abnormal, abnormality, abnormalities — see also Anomaly
- course, eustachian tube Q17.8
- Absence (of) (organ or part) (complete or partial)
- Agenesis
- Anomaly, anomalous (congenital) (unspecified type) Q89.9
- Atresia, atretic
- eustachian tube Q17.8
- Double
- auditory canal Q17.8
- Hypoplasia, hypoplastic
- Malposition
- Stricture — see also Stenosis
- eustachian tube — see also Obstruction, eustachian tube
- congenital Q17.8
- eustachian tube — see also Obstruction, eustachian tube
- Tubercle — see also Tuberculosis
- Darwin's Q17.8
- Darwin's tubercle Q17.8
- Deformity Q89.9
- eustachian tube (congenital) NEC Q17.8
- Dilatation
- eustachian tube, congenital Q17.8
- Distortion (s) (congenital)
- eustachian tube Q17.8
- Malformation (congenital) — see also Anomaly
- Fissure, fissured
- ear, lobule, congenital Q17.8
Alongside this code 7 same parent — Q17
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.