Is ICD-10-CM code H51 billable?

No, H51 (Other disorders of binocular movement) is a non-billable ICD-10-CM code. It must be coded to a more specific subcategory before it can be used for reimbursement.

What chapter does ICD-10-CM code H51 belong to?

H51 belongs to Chapter 7 of the ICD-10-CM tabular list: H00–H59 (Diseases of the Eye and Adnexa).

H51Not billable, use a more specific code below

Other disorders of binocular movement

In Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52), chapter 7: Diseases of the Eye and Adnexa

9 billable codes under H51: none are a CC or MCC; none map to an HCC.

Instructional notes

Also applies, from Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)

These notes sit on H49-H52 and apply to every code under it, including H51.

Excludes2: not included here, code separately if applicable

nystagmus and other irregular eye movements (H55)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers coding glaucoma by type, eye, and stage, including bilateral cases and stage changes, and coding blindness or low vision when the impairment category is undocumented.

Glaucoma (page 48)
Blindness (page 49)

Read Section I.C.7 (page 48)

All codes under H51

H51 can't be used on a claim. Pick a billable code below; grey headings group them.

H51 MS-DRGs

As the principal diagnosis, the billable codes under H51 group to MS-DRG 091, 092, 093, 124, 125, or 123 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

DRG 091 Other Disorders of Nervous System with MCC (4 of 9 codes)
DRG 092 Other Disorders of Nervous System with CC (4 of 9 codes)
DRG 093 Other Disorders of Nervous System without CC/MCC (4 of 9 codes)
DRG 124 Other Disorders of the Eye with MCC or Thrombolytic Agent (4 of 9 codes)
DRG 125 Other Disorders of the Eye without MCC (4 of 9 codes)
DRG 123 Neurological Eye Disorders (1 of 9 codes)

About the condition

Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.

Eye Movement Disorders

When you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.