H49.9 – Unspecified paralytic strabismus

ICD-10-CM 2027 diagnosis code · Disorders of ocular muscles, binocular movement, accommodation and refraction

Billable code

ICD-10-CM code H49.9

Code: H49.9 (claims format: H499)
Description: Unspecified paralytic strabismus
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 7. Diseases of the eye and adnexa (H00-H59)
Block: H49-H52 Disorders of ocular muscles, binocular movement, accommodation and refraction
Parent codes: H49

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

H49 – Paralytic strabismus

Excludes2 (not included here):

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

Block H49-H52

Excludes2 (not included here):

nystagmus and other irregular eye movements (H55)

Index terms for H49.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in H49

Frequently asked questions

What is ICD-10 code H49.9?

H49.9 is the ICD-10-CM code for unspecified paralytic strabismus, in the block H49-H52 (Disorders of ocular muscles, binocular movement, accommodation and refraction).

Is H49.9 a billable code?

Yes. H49.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does H49.9 belong to?

It belongs to category H49 – Paralytic strabismus.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.