ICD-10-CM category
H49: Paralytic strabismus
Codes under H49 (Paralytic strabismus). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| H49.0 | Third [oculomotor] nerve palsy | — |
| H49.0 | Third [oculomotor] nerve palsy | — |
| H49.00 | Third [oculomotor] nerve palsy, unspecified eye | ✓ |
| H49.00 | Third [oculomotor] nerve palsy, unspecified eye | ✓ |
| H49.01 | Third [oculomotor] nerve palsy, right eye | ✓ |
| H49.01 | Third [oculomotor] nerve palsy, right eye | ✓ |
| H49.1 | Fourth [trochlear] nerve palsy | — |
| H49.1 | Fourth [trochlear] nerve palsy | — |
| H49.02 | Third [oculomotor] nerve palsy, left eye | ✓ |
| H49.02 | Third [oculomotor] nerve palsy, left eye | ✓ |
| H49.2 | Sixth [abducent] nerve palsy | — |
| H49.2 | Sixth [abducent] nerve palsy | — |
| H49.03 | Third [oculomotor] nerve palsy, bilateral | ✓ |
| H49.03 | Third [oculomotor] nerve palsy, bilateral | ✓ |
| H49.3 | Total (external) ophthalmoplegia | — |
| H49.3 | Total (external) ophthalmoplegia | — |
| H49.4 | Progressive external ophthalmoplegia | — |
| H49.4 | Progressive external ophthalmoplegia | — |
| H49.8 | Other paralytic strabismus | — |
| H49.8 | Other paralytic strabismus | — |
| H49.9 | Unspecified paralytic strabismus | ✓ |
| H49.9 | Unspecified paralytic strabismus | ✓ |
| H49.10 | Fourth [trochlear] nerve palsy, unspecified eye | ✓ |
| H49.10 | Fourth [trochlear] nerve palsy, unspecified eye | ✓ |
| H49.11 | Fourth [trochlear] nerve palsy, right eye | ✓ |
| H49.11 | Fourth [trochlear] nerve palsy, right eye | ✓ |
| H49.12 | Fourth [trochlear] nerve palsy, left eye | ✓ |
| H49.12 | Fourth [trochlear] nerve palsy, left eye | ✓ |
| H49.13 | Fourth [trochlear] nerve palsy, bilateral | ✓ |
| H49.13 | Fourth [trochlear] nerve palsy, bilateral | ✓ |
| H49.20 | Sixth [abducent] nerve palsy, unspecified eye | ✓ |
| H49.20 | Sixth [abducent] nerve palsy, unspecified eye | ✓ |
| H49.21 | Sixth [abducent] nerve palsy, right eye | ✓ |
| H49.21 | Sixth [abducent] nerve palsy, right eye | ✓ |
| H49.22 | Sixth [abducent] nerve palsy, left eye | ✓ |
| H49.22 | Sixth [abducent] nerve palsy, left eye | ✓ |
| H49.23 | Sixth [abducent] nerve palsy, bilateral | ✓ |
| H49.23 | Sixth [abducent] nerve palsy, bilateral | ✓ |
| H49.30 | Total (external) ophthalmoplegia, unspecified eye | ✓ |
| H49.30 | Total (external) ophthalmoplegia, unspecified eye | ✓ |
| H49.31 | Total (external) ophthalmoplegia, right eye | ✓ |
| H49.31 | Total (external) ophthalmoplegia, right eye | ✓ |
| H49.32 | Total (external) ophthalmoplegia, left eye | ✓ |
| H49.32 | Total (external) ophthalmoplegia, left eye | ✓ |
| H49.33 | Total (external) ophthalmoplegia, bilateral | ✓ |
| H49.33 | Total (external) ophthalmoplegia, bilateral | ✓ |
| H49.40 | Progressive external ophthalmoplegia, unspecified eye | ✓ |
| H49.40 | Progressive external ophthalmoplegia, unspecified eye | ✓ |
| H49.41 | Progressive external ophthalmoplegia, right eye | ✓ |
| H49.41 | Progressive external ophthalmoplegia, right eye | ✓ |
| H49.42 | Progressive external ophthalmoplegia, left eye | ✓ |
| H49.42 | Progressive external ophthalmoplegia, left eye | ✓ |
| H49.43 | Progressive external ophthalmoplegia, bilateral | ✓ |
| H49.43 | Progressive external ophthalmoplegia, bilateral | ✓ |
| H49.81 | Kearns-Sayre syndrome | — |
| H49.81 | Kearns-Sayre syndrome | — |
| H49.88 | Other paralytic strabismus | — |
| H49.88 | Other paralytic strabismus | — |
| H49.811 | Kearns-Sayre syndrome, right eye | ✓ |
| H49.811 | Kearns-Sayre syndrome, right eye | ✓ |
| H49.812 | Kearns-Sayre syndrome, left eye | ✓ |
| H49.812 | Kearns-Sayre syndrome, left eye | ✓ |
| H49.813 | Kearns-Sayre syndrome, bilateral | ✓ |
| H49.813 | Kearns-Sayre syndrome, bilateral | ✓ |
| H49.819 | Kearns-Sayre syndrome, unspecified eye | ✓ |
| H49.819 | Kearns-Sayre syndrome, unspecified eye | ✓ |
| H49.881 | Other paralytic strabismus, right eye | ✓ |
| H49.881 | Other paralytic strabismus, right eye | ✓ |
| H49.882 | Other paralytic strabismus, left eye | ✓ |
| H49.882 | Other paralytic strabismus, left eye | ✓ |
| H49.883 | Other paralytic strabismus, bilateral | ✓ |
| H49.883 | Other paralytic strabismus, bilateral | ✓ |
| H49.889 | Other paralytic strabismus, unspecified eye | ✓ |
| H49.889 | Other paralytic strabismus, unspecified eye | ✓ |
Frequently asked questions
What is ICD-10-CM code H49?
H49 is an ICD-10-CM category covering Paralytic strabismus. It contains 74 more specific diagnosis codes, 58 of which are billable.
Is H49 a billable code?
No — H49 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example H49.0 — Third [oculomotor] nerve palsy). 58 of the 74 codes under H49 are billable.
What codes fall under H49?
H49 includes H49.0, H49.0, H49.00, H49.00, H49.01, plus 69 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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