H40.9: Glaucoma, unspecified
You have glaucoma. As a result your eye has been damaged.
There are two chambers in the front of the eye. Aqueous humor flows through these chambers to nourish certain parts of the eye. The intraocular pressure depends on the balance between the production and drainage of aqueous humor. With glaucoma, the intraocular pressure is usually greater than usual. Certain factors can favor glaucoma. These include, for example, a more advanced age, short-sightedness, and close relatives with glaucoma.
The increase in intraocular pressure can damage the optic nerve. The optic nerve is located behind the retina. The retina is a layer inside the eye. It contains a lot of sensory cells that can perceive light. There are sensory cells for colors and sensory cells for light and dark. The sensory cells pass the information on to the nerve cells in the optic nerve.
Sight disorders are typical of glaucoma. The vision often deteriorates at the edge first. At that point, things are unclear or fuzzy. Colored rings might also be seen. If the condition is very advanced, blindness can sometimes follow.
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
Note
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.
Source
Provided by the non-profit organization “Was hab’ ich?” gemeinnützige GmbH on behalf of the Federal Ministry of Health (BMG).