ICD-10 Code H05.42 – Enophthalmos due to trauma or surgery (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H05.42 – Enophthalmos due to trauma or surgery
What it is
H05.42 identifies inward displacement of the eyeball caused by prior trauma or a surgical procedure. Use it when the record clearly links the sunken eye appearance to those causes.
Clinical signs
Typical findings include a visibly sunken globe, reduced orbital fullness, or facial asymmetry. Clinical features vary; refer to documentation for the cause and laterality if noted.
When to use this code
Use this code when the provider documents enophthalmos as a result of eye, orbital, or facial trauma, or after surgery affecting the orbit. It fits follow-up visits, specialist assessments, or imaging-based documentation that confirms the post-traumatic or postsurgical origin.
If the note only says “sunken eye” without a stated cause, check documentation before coding. You should code the specific diagnosis only when the relationship to trauma or surgery is explicit.
Do not use for
Do not use this code for congenital, age-related, or disease-related enophthalmos unless trauma or surgery is documented as the cause. Check documentation if the chart does not clearly establish etiology.
Coding tip
Look for wording such as “post-traumatic” or “postoperative” enophthalmos before assigning H05.42.