ICD10 code of Leber Hereditary Optic Neuropathy and ICD9 code

Leber Hereditary Optic Neuropathy (LHON) is classified under ICD-10 code H47.21 (Hereditary optic atrophy) and historically under ICD-9 code 377.16 (Hereditary optic atrophy). These codes are used by healthcare providers and insurance companies to identify and document Leber Hereditary Optic Neuropathy within clinical and administrative systems.

What is the clinical significance of these codes?

While ICD-10 code H47.21 is the standard for Leber Hereditary Optic Neuropathy, it is a broader category that includes other hereditary optic neuropathies. Because Leber Hereditary Optic Neuropathy is a rare mitochondrial genetic disorder, precise coding is essential for ensuring patients receive appropriate specialized care, such as neuro-ophthalmology consultations and access to emerging gene therapies.

How is Leber Hereditary Optic Neuropathy diagnosed?

Diagnosis of Leber Hereditary Optic Neuropathy typically involves a combination of clinical evaluation and genetic testing. Physicians look for specific mitochondrial DNA (mtDNA) mutations that affect the respiratory chain complex I. The most common pathogenic variants associated with Leber Hereditary Optic Neuropathy include:

• m.11778G>A (ND4 gene)


• m.3460G>A (ND1 gene)


• m.14484T>C (ND6 gene)

Is there support for those living with Leber Hereditary Optic Neuropathy?

Navigating a diagnosis of Leber Hereditary Optic Neuropathy can be emotionally challenging due to the sudden onset of vision loss. Currently, 57 people with Leber Hereditary Optic Neuropathy have joined the DiseaseMaps.org community to share their experiences, offer peer support, and discuss adaptive strategies for daily living.

Next steps

• Consult a neuro-ophthalmologist or a clinical geneticist to confirm your diagnosis and discuss potential clinical trials.


• Connect with the 57 members of the DiseaseMaps.org community to share lived experiences and coping mechanisms.


• Request genetic counseling to understand the inheritance patterns of Leber Hereditary Optic Neuropathy for your family members.

Medical disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment; always seek the advice of a qualified healthcare provider.

References

• NIH Genetic and Rare Diseases Information Center (GARD)


• Orphanet: Rare Disease Database (ORPHA:52)


• Online Mendelian Inheritance in Man (OMIM #535000)


• United Mitochondrial Disease Foundation (UMDF)