H49.02 Third [oculomotor] nerve palsy, left eye

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)

• 378.51 Third or oculomotor nerve palsy, partial (approximate)
• 378.52 Third or oculomotor nerve palsy, total (approximate)

Code annotations containing back-references to H49.02

Back-references to H49.0

• Type 2 Excludes: G52 Disorders of other cranial nerves ("paralytic strabismus due to nerve palsy (H49.0-H49.2)")

Nearby codes

• H49 Paralytic strabismus
• H49.0 Third [oculomotor] nerve palsy
• H49.00 Third [oculomotor] nerve palsy, unspecified eye
• H49.01 Third [oculomotor] nerve palsy, right eye
• H49.02 Third [oculomotor] nerve palsy, left eye (this code)
• H49.03 Third [oculomotor] nerve palsy, bilateral
• H49.1 Fourth [trochlear] nerve palsy
• H49.10 Fourth [trochlear] nerve palsy, unspecified eye
• H49.11 Fourth [trochlear] nerve palsy, right eye
• H49.12 Fourth [trochlear] nerve palsy, left eye