H40.5

H40.5: Glaucoma secondary to other eye disorders

Non-billable headerICD-10-CM

H40.5 is a non-billable header ICD-10-CM code for glaucoma secondary to other eye disorders. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

One of the following 7th characters is to be assigned to each code in subcategory H40.5 to designate the stage of glaucoma

0: stage unspecified
1: mild stage
2: moderate stage
3: severe stage
4: indeterminate stage

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

underlying eye disorder

Excludes1 inherited from the categories above H40.5

A category’s note binds every code beneath it.

Written on H40: Glaucoma

absolute glaucoma (H44.51-)
congenital glaucoma (Q15.0)
traumatic glaucoma due to birth injury (P15.3)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead H40.5

4 child codes. Green means billable.