ICD-10 Code H83.1 – Labyrinthine fistula (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H83.1 – Labyrinthine fistula
What it is
H83.1 identifies a fistula involving the labyrinth of the inner ear, usually an abnormal opening or communication. It is used when documentation specifically names labyrinthine fistula.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings include vertigo, hearing changes, and symptoms triggered by pressure or sound, but you should code only what is documented.
When to use this code
Use H83.1 when the provider documents labyrinthine fistula, including cases confirmed by examination or imaging. It may appear in records describing inner ear leakage or a fistula related to the labyrinth. If the note is nonspecific, check documentation before assigning the code.
Do not use for
Do not use this code for other ear disorders, nonspecific dizziness, or hearing loss without documentation of a labyrinthine fistula. If the record names a different fistula site, choose the documented diagnosis instead.
Coding tip
Code H83.1 only when the provider clearly identifies a labyrinthine fistula; otherwise, query or check documentation.