H49.4
Non-billableProgressive external ophthalmoplegia
H49.4 is the ICD-10-CM code for Progressive external ophthalmoplegia. It is a non-billable category code — use a more specific child code such as H49.40 for billing.
H00-H59 Diseases of the eye and adnexa
What this means — in plain language
MedlinePlus · NIHWhen you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly. There are many kinds of eye movement disorders. Two common ones are: Strabismus - a disorder in which the two eyes don't line up in the same direction. This results in "crossed eyes" or "walleye." Nystagmus - fast, uncontrollable movements of the eyes,…
Read more about Eye Movement Disorders at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes1 — not coded here
- •Kearns-Sayre syndrome (H49.81-)
Frequently asked questions
- What is ICD-10 code H49.4?
- H49.4 is the ICD-10-CM code for "Progressive external ophthalmoplegia". It falls under H00-H59 Diseases of the eye and adnexa.
- Is H49.4 a billable code?
- No — H49.4 is a non-billable header code. Use a more specific child code (such as H49.40) for billing.
- What are the subcodes of H49.4?
- H49.4 has 4 more specific child codes, including H49.40, H49.41, H49.42.
- What is excluded from H49.4?
- Excludes1 (not coded here): Kearns-Sayre syndrome (H49.81-).
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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