H40: Glaucoma
Glaucoma is a group of eye conditions characterized by damage to the optic nerve, the vital part that transmits images to one's brain. Typically, this damage results from an increased pressure in the eye which can occur for varying reasons, resulting in different types of Glaucoma. Common symptoms may include a gradual loss of peripheral vision, difficulty seeing in low light, eye pain, redness, blurred vision, or in severe cases, vision loss. Glaucoma is a progressive condition, meaning it may worsen over time without treatment, and primarily affects the eyes but may also influence the nervous system due to the intrinsic connection of the optic nerve to the brain. The disease generally has very slow progression and many people may not notice any symptoms until the disease has reached an advanced stage.
Subcodes of H40:
- H40.0: Glaucoma suspect
- H40.1: Primary open-angle glaucoma
- H40.2: Primary angle-closure glaucoma
- H40.3: Glaucoma secondary to eye trauma
- H40.4: Glaucoma secondary to eye inflammation
- H40.5: Glaucoma secondary to other eye disorders
- H40.6: Glaucoma secondary to drugs
- H40.8: Other glaucoma
- H40.9: Glaucoma, unspecified
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.