ICD10 code of High Myopia and ICD9 code

High Myopia is clinically defined by a refractive error of -6.00 diopters or worse and is coded under ICD-10 as H52.13 (for bilateral high myopia), while the legacy ICD-9 code is 367.1. Because High Myopia carries an increased risk of sight-threatening complications like retinal detachment and myopic maculopathy, accurate coding and regular monitoring by an ophthalmologist are essential for long-term ocular health.

What is the clinical definition and classification of High Myopia?

In clinical practice, High Myopia is distinguished from common nearsightedness by the severity of the refractive error and the elongation of the eyeball (axial length). While standard myopia often stabilizes in early adulthood, High Myopia—often referred to as degenerative or pathological myopia—frequently involves structural changes to the retina, choroid, and sclera. The ICD-10 system provides specific granularity for this condition, with H52.11 representing the right eye, H52.12 the left eye, and H52.13 representing bilateral involvement. The transition from ICD-9 code 367.1 to these more specific ICD-10 codes allows medical professionals to better track the progression of High Myopia and associated complications.

What are the primary health risks associated with High Myopia?

Unlike simple refractive errors, High Myopia is considered a medical condition that significantly increases the risk of developing irreversible ocular pathology. The extreme axial elongation associated with High Myopia stretches the delicate tissues of the eye, leading to several secondary concerns:

• Myopic Maculopathy: Thinning of the macula that can lead to central vision loss.


• Retinal Detachment: Increased risk due to peripheral retinal thinning and lattice degeneration.


• Posterior Staphyloma: An outward bulging of the posterior wall of the eye.


• Glaucoma and Cataracts: Patients with High Myopia often develop these conditions at an earlier age than the general population.

Is High Myopia hereditary and how is it diagnosed?

Genetics play a significant role in the development of High Myopia, as it often clusters in families. While environmental factors like intense near-work and limited outdoor time in childhood contribute to myopia progression, high-degree refractive errors are frequently linked to specific genetic variants. Diagnosis is typically performed during a comprehensive dilated eye exam. An optometrist or ophthalmologist will measure the refractive error using a phoropter and evaluate the health of the retina through an ophthalmoscope to check for signs of pathological stretching or thinning.

How does the DiseaseMaps community support those with High Myopia?

Living with a condition that carries a risk of vision loss can be emotionally taxing. Currently, 78 people with High Myopia have joined the DiseaseMaps.org community to share their experiences, coping strategies, and advice on managing the daily realities of life with high refractive error. Connecting with others who understand the unique challenges of High Myopia—such as the difficulty of finding specialized eyewear or navigating the anxiety of regular retinal screenings—can provide invaluable emotional support and practical insights.

Next steps

• Schedule an annual comprehensive dilated eye examination with a retina specialist, especially if you have a high prescription.


• Educate yourself on the warning signs of retinal detachment, such as sudden increases in floaters or "curtain-like" shadows in your vision.


• Join the High Myopia community on DiseaseMaps.org to connect with others who have similar experiences and share insights on vision management.


• Discuss potential myopia control strategies with your eye care provider if you have children or adolescents in your family who are showing signs of rapid progression.

Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment; always consult with a qualified ophthalmologist regarding your specific eye health needs.

References

• World Health Organization (WHO): International Classification of Diseases, 10th Revision (ICD-10) Browser.


• National Eye Institute (NEI): Myopia and High Myopia Research and Resources.


• Orphanet: Rare and genetic eye diseases database.


• OMIM (Online Mendelian Inheritance in Man): Entry for Myopia, High-Grade.