ICD-10 Code H50.622 – Inferior oblique muscle entrapment, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H50.622 – Inferior oblique muscle entrapment, left eye
What it is
H50.622 identifies entrapment of the inferior oblique muscle in the left eye. Use it when the record clearly documents mechanical trapping of that extraocular muscle.
Clinical signs
Findings may include restricted left-eye movement, diplopia, or pain with eye motion. Clinical features vary; refer to documentation for the specific exam findings and laterality.
When to use this code
Use this code when the provider states inferior oblique muscle entrapment in the left eye, such as after trauma or surgery. You should also use it when imaging or operative notes confirm the entrapment and the left side is specified.
If the chart only mentions eye pain, motility limitation, or suspected entrapment without confirmation, check documentation before coding. The diagnosis must be clearly linked to the left eye.
Do not use for
Do not use H50.622 for unspecified eye involvement or for other extraocular muscle disorders. Do not assign it when entrapment is not documented.
Coding tip
Verify the exact muscle and laterality in the operative note or specialist assessment before assigning this code.