H49.9 Unspecified paralytic strabismus

Billable ICD-10-CM code, FY2026.

Applies from H49 Paralytic strabismus

Excludes2 (not included here)

• internal ophthalmoplegia (H52.51-)
• internuclear ophthalmoplegia (H51.2-)
• progressive supranuclear ophthalmoplegia (G23.1)

MS-DRG index

Defines the logic of DRG(s) 123 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 378.50 Paralytic strabismus, unspecified (approximate)

Diagnosis Index entries for H49.9

• Paralysis, paralytic (complete) (incomplete) › eye muscle (extrinsic)
• Paralysis, paralytic (complete) (incomplete) › muscle, muscular NEC › eye (extrinsic)
• Paralysis, paralytic (complete) (incomplete) › ocular
• Paralysis, paralytic (complete) (incomplete) › rectus muscle (eye)
• Paresis › extrinsic muscle, eye
• Strabismus (congenital) (nonparalytic) › paralytic

Nearby codes

• H49.88 Other paralytic strabismus
• H49.881 Other paralytic strabismus, right eye
• H49.882 Other paralytic strabismus, left eye
• H49.883 Other paralytic strabismus, bilateral
• H49.889 Other paralytic strabismus, unspecified eye
• H49.9 Unspecified paralytic strabismus (this code)