Q16.5
Congenital malformation of inner ear
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 8 never code together
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 2
Q16.5code
Inclusion terms
- Congenital anomaly of membranous labyrinth
- Congenital anomaly of organ of Corti
Index entries leading here 12
- Absence (of) (organ or part) (complete or partial)
- Agenesis
- Anomaly, anomalous (congenital) (unspecified type) Q89.9
- Aplasia — see also Agenesis
- labyrinth, membranous Q16.5
- Malformation (congenital) — see also Anomaly
- Collapse R55
- labyrinth, membranous (congenital) Q16.5
- Deformity Q89.9
- Degeneration, degenerative
- Dilatation
- saccule, congenital Q16.5
- Distortion (s) (congenital)
- Enlargement, enlarged — see also Hypertrophy
- vestibular aqueduct Q16.5
- Mondini's malformation (cochlea) Q16.5
Alongside this code 6 same parent — Q16
Q16.0 Congenital absence of (ear) auricle Q16.1 Congenital absence, atresia and stricture of auditory canal Q16.2 Absence of eustachian tube Q16.3 Congenital malformation of ear ossicles Q16.4 Other congenital malformations of middle ear Q16.9 Congen malform of ear causing impairment of hearing, unsp
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.