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ICD-10-CM · FY 2026 APRIL UPDATE

H49

Paralytic strabismus

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
H49.0Third [oculomotor] nerve palsyCategory
H49.00Third [oculomotor] nerve palsy, unspecified eyeBillable
H49.01Third [oculomotor] nerve palsy, right eyeBillable
H49.02Third [oculomotor] nerve palsy, left eyeBillable
H49.03Third [oculomotor] nerve palsy, bilateralBillable
H49.1Fourth [trochlear] nerve palsyCategory
H49.10Fourth [trochlear] nerve palsy, unspecified eyeBillable
H49.11Fourth [trochlear] nerve palsy, right eyeBillable
H49.12Fourth [trochlear] nerve palsy, left eyeBillable
H49.13Fourth [trochlear] nerve palsy, bilateralBillable
H49.2Sixth [abducent] nerve palsyCategory
H49.20Sixth [abducent] nerve palsy, unspecified eyeBillable
H49.21Sixth [abducent] nerve palsy, right eyeBillable
H49.22Sixth [abducent] nerve palsy, left eyeBillable
H49.23Sixth [abducent] nerve palsy, bilateralBillable
H49.3Total (external) ophthalmoplegiaCategory
H49.30Total (external) ophthalmoplegia, unspecified eyeBillable
H49.31Total (external) ophthalmoplegia, right eyeBillable
H49.32Total (external) ophthalmoplegia, left eyeBillable
H49.33Total (external) ophthalmoplegia, bilateralBillable
H49.4Progressive external ophthalmoplegiaCategory
H49.40Progressive external ophthalmoplegia, unspecified eyeBillable
H49.41Progressive external ophthalmoplegia, right eyeBillable
H49.42Progressive external ophthalmoplegia, left eyeBillable
H49.43Progressive external ophthalmoplegia, bilateralBillable
H49.8Other paralytic strabismusCategory
H49.81Kearns-Sayre syndromeCategory
H49.811Kearns-Sayre syndrome, right eyeBillable
H49.812Kearns-Sayre syndrome, left eyeBillable
H49.813Kearns-Sayre syndrome, bilateralBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.