MCMedicalCodingSoftware
H40.6

H40.6: Glaucoma secondary to drugs

Non-billable headerICD-10-CM

H40.6 is a non-billable header ICD-10-CM code for glaucoma secondary to drugs. 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 H40.6 to designate the stage of glaucoma

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

Use additional code

Add a secondary code to capture the detail described below.

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Excludes1 inherited from the categories above H40.6

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 H40.6

4 child codes. Green means billable.

Other codes under H40

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.