ICD-10 Code H05.419 – Enophthalmos due to atrophy of orbital tissue, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.419 – Enophthalmos due to atrophy of orbital tissue, unspecified eye
What it is
This code identifies inward displacement of the eyeball caused by loss or atrophy of orbital tissue, when the affected eye is not specified. Use it for documented enophthalmos linked to orbital tissue wasting.
Clinical signs
Typical findings include a sunken appearance of the eye and posterior displacement within the orbit. Clinical features vary; refer to documentation for the underlying cause and laterality if recorded.
When to use this code
Use H05.419 when the provider documents enophthalmos due to atrophy of orbital tissue and does not identify the eye. It also fits notes describing orbital volume loss with no more specific laterality or cause coded elsewhere. If the record names a different etiology, check documentation before assigning this code.
Do not use for
Do not use this code for enophthalmos with a documented specific eye when a laterality-specific code is available. Do not use it for other orbital disorders or for a sunken eye appearance without a stated link to orbital tissue atrophy.
Coding tip
Confirm that the record explicitly links enophthalmos to orbital tissue atrophy before coding H05.419.