H49 Paralytic strabismus

Category / Non-billable header 37 subcodes

Block: Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)

Excludes 2 (not included here)

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

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
H49..0 Third [oculomotor] nerve palsy No
H49..00 Third [oculomotor] nerve palsy, unspecified eye Yes
H49..01 Third [oculomotor] nerve palsy, right eye Yes
H49..02 Third [oculomotor] nerve palsy, left eye Yes
H49..03 Third [oculomotor] nerve palsy, bilateral Yes
H49..1 Fourth [trochlear] nerve palsy No
H49..10 Fourth [trochlear] nerve palsy, unspecified eye Yes
H49..11 Fourth [trochlear] nerve palsy, right eye Yes
H49..12 Fourth [trochlear] nerve palsy, left eye Yes
H49..13 Fourth [trochlear] nerve palsy, bilateral Yes
H49..2 Sixth [abducent] nerve palsy No
H49..20 Sixth [abducent] nerve palsy, unspecified eye Yes
H49..21 Sixth [abducent] nerve palsy, right eye Yes
H49..22 Sixth [abducent] nerve palsy, left eye Yes
H49..23 Sixth [abducent] nerve palsy, bilateral Yes
H49..3 Total (external) ophthalmoplegia No
H49..30 Total (external) ophthalmoplegia, unspecified eye Yes
H49..31 Total (external) ophthalmoplegia, right eye Yes
H49..32 Total (external) ophthalmoplegia, left eye Yes
H49..33 Total (external) ophthalmoplegia, bilateral Yes
H49..4 Progressive external ophthalmoplegia No
H49..40 Progressive external ophthalmoplegia, unspecified eye Yes
H49..41 Progressive external ophthalmoplegia, right eye Yes
H49..42 Progressive external ophthalmoplegia, left eye Yes
H49..43 Progressive external ophthalmoplegia, bilateral Yes
H49..8 Other paralytic strabismus No
H49..81 Kearns-Sayre syndrome No
H49..811 Kearns-Sayre syndrome, right eye Yes
H49..812 Kearns-Sayre syndrome, left eye Yes
H49..813 Kearns-Sayre syndrome, bilateral Yes
H49..819 Kearns-Sayre syndrome, unspecified eye Yes
H49..88 Other paralytic strabismus No
H49..881 Other paralytic strabismus, right eye Yes
H49..882 Other paralytic strabismus, left eye Yes
H49..883 Other paralytic strabismus, bilateral Yes
H49..889 Other paralytic strabismus, unspecified eye Yes
H49..9 Unspecified paralytic strabismus Yes

Last reviewed: September 2026