Q16.5
Billable codeCongenital malformation of inner ear
The ICD-10 code for congenital malformation of inner ear is Q16.5.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Congenital anomaly of membranous labyrinth
- Congenital anomaly of organ of Corti
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Q16.0Congenital absence of (ear) auricle
- Q16.1Congenital absence, atresia and stricture of auditory canal (external)
- Q16.2Absence of eustachian tube
- Q16.3Congenital malformation of ear ossicles
- Q16.4Other congenital malformations of middle ear
- Q16.9Congenital malformation of ear causing impairment of hearing, unspecified
- Q16.5Congenital malformation of inner ear
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 74405
Associated MS-DRGs
Q16.5 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.