ICD-10-CM 2027
ICD-10 code for mechanical strabismus
From the official ICD-10-CM alphabetic index entry “Strabismus (congenital) (nonparalytic) › mechanical”. Page updated September 29, 2026.
About coding mechanical strabismus
The ICD-10-CM code for mechanical strabismus is H50.60 (Mechanical strabismus, unspecified). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H50.60.
Within H50.6, choose H50.60 (unspecified) only when documentation doesn't support a more specific option: Brown's sheath syndrome (H50.61), inferior oblique muscle entrapment (H50.62), inferior rectus muscle entrapment (H50.63), lateral rectus muscle entrapment (H50.64), medial rectus muscle entrapment (H50.65), superior oblique muscle entrapment (H50.66), superior rectus muscle entrapment (H50.67), extraocular muscle entrapment, unspecified (H50.68) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific mechanical strabismus codes (official index)
Common questions about mechanical strabismus ICD-10 codes
What is the ICD-10 code for mechanical strabismus?
- H50.60 — Mechanical strabismus, unspecified. More specific codes apply when the documentation supports them: H50.61, H50.69.
What is the ICD-10 code for brown's sheath syndrome mechanical strabismus?
- H50.61 — Brown's sheath syndrome (header code; choose a more specific subcode).
Is H50.60 billable?
- Yes. H50.60 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H50.60 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H50.60 as a principal diagnosis.
Is H50.60 a CC or MCC?
- No. H50.60 is neither a CC nor an MCC under MS-DRG v44.0.