Mechanical strabismus, unspecified

This code describes a type of strabismus where the misalignment of the eyes is caused by a physical obstruction or restriction of extraocular muscle movement, rather than a neurological or muscular innervation issue. It indicates that the specific cause or nature of the mechanical restriction is not documented.

This code is appropriate when documentation specifies mechanical strabismus but lacks further detail regarding the underlying cause, such as orbital tumors, scarring, or adhesions. It should be used when the provider has diagnosed mechanical strabismus but has not yet identified the specific etiology or when the etiology is unknown.

• Avoid using this code if the specific cause of the mechanical strabismus is known and documented (e.g., orbital tumor, trauma).
• Always review the medical record for more specific documentation that might allow for a more precise code.
• This code should be sequenced as a primary diagnosis when it is the reason for the encounter, or as a secondary diagnosis when it is a co-existing condition.