OPS-Code 5-198.x:
Microsurgical operations on the middle ear: Fenestration surgery on the promontory: Other
You had a fenestration procedure to create a window in your middle ear.
The ear is a sensory organ that is used to hear and to maintain one’s balance. There are 3 different areas in the ear: the outer ear, middle ear and inner ear.The middle ear begins behind the eardrum. It consists of the air-filled tympanic cavity and the 3 ossicles.The ossicles transmit sounds from the eardrum to the inner ear in the form of vibrations.
The surgery involved making a type of window in the bony wall between the middle ear and the inner ear. A small drill is normally used for this purpose. A thin layer of bone may be left in place or the window created may be covered with tissue taken from a different part of the body. The new window allows sound to travel into the inner ear.
Note
Your doctor will assist you with any health-related questions and explain the OPS code to you in a direct consultation if necessary.
Additional indicator
If necessary, additional letters are appended to OPS codes to indicate which side of the body is affected.
- L: Left
- R: Right
- B: Both sides
Source
The explanation of the OPS code was provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).