H33.4: Traction detachment of retina

The retina in your eye has become detached.

The retina is a layer inside the eye. It contains a lot of nerve cells that perceive light. This enables us to see colors and differences between light and dark. The nerve cells in the retina also form the optic nerve that runs from the eye to the brain.

Inside the eye is the vitreous body. The vitreous body is transparent. It consists of a type of gel, and it almost entirely fills the eye. In some places the vitreous body is joined to the retina. As we age, the vitreous body may contract so that it pulls on the retina. The retina may then tear as a result. When the retina tears, fluid may get into the retina through the hole. When fluid gets into the retina, it can become detached.

A detached retina is not usually painful. At first, one often sees flashes of light or small black dots. If the retina gets more detached, a sort of shadow moves into one’s field of vision. If the retina gets completely detached, blindness may result.

Additional indicator

On medical documents, the ICD code is often appended by letters that indicate the diagnostic certainty or the affected side of the body.

  • G: Confirmed diagnosis
  • V: Tentative diagnosis
  • Z: Condition after
  • A: Excluded diagnosis
  • L: Left
  • R: Right
  • B: Both sides

Further information


This information is not intended for self-diagnosis and does not replace professional medical advice from a doctor. If you find an ICD code on a personal medical document, please also note the additional indicator used for diagnostic confidence.
Your doctor will assist you with any health-related questions and explain the ICD diagnosis code to you in a direct consultation if necessary.


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