Q16.5
Congenital malformation of inner ear
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Congenital anomaly of membranous labyrinth Congenital anomaly of organ of Corti
congenital deafness (H90.-)
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)
inborn errors of metabolism (E70-E88)
Codes from this chapter are not for use on maternal records
Official Guidelines for Q16.5
FY 2026 ›Sections that reference Q16.5
Sections whose FY 2026 text names Q16.5, its Q16 category, or a range containing it — the chapter guidance above is the authoritative source.
Find Q16.5 in the alphabetic index
24 index paths lead to this code
- Mondini's malformation
- Absence › inner ear, congenital
- Absence › labyrinth, membranous
- Agenesis › labyrinth, membranous
- Anomaly, anomalous › labyrinth, membranous
- Aplasia › labyrinth, membranous
- Collapse › labyrinth, membranous
- Deformity › organ of Corti
- Degeneration, degenerative › membranous labyrinth, congenital
- Degeneration, degenerative › saccule, congenital
- Dilatation › saccule, congenital
- Enlargement, enlarged › vestibular aqueduct
- Malformation › cochlea
- Malformation › internal ear
- Malformation › Mondini's
- Absence › ear, congenital › inner
- Absence › organ › of Corti, congenital
- Agenesis › organ › of Corti
- Anomaly, anomalous › ear › inner
- Anomaly, anomalous › organ › of Corti
- Distortion › ear › inner
- Distortion › organ › of Corti
- Malformation › ear › inner
- Deformity › ear › congenital › internal