H40.233 – Intermittent angle-closure glaucoma, bilateral

ICD-10-CM 2027 diagnosis code · Glaucoma

Billable code

ICD-10-CM code H40.233
Code
H40.233 (claims format: H40233)
Description
Intermittent angle-closure glaucoma, bilateral
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
H40-H42 Glaucoma
Parent codes
H40 › H40.2 › H40.23

Notes inherited from parent codes

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

H40 – Glaucoma

Excludes1 (not coded here):
  • absolute glaucoma (H44.51-)
  • congenital glaucoma (Q15.0)
  • traumatic glaucoma due to birth injury (P15.3)

H40.2 – Primary angle-closure glaucoma

Excludes1 (not coded here):

Related codes in H40.23

Frequently asked questions

What is ICD-10 code H40.233?

H40.233 is the ICD-10-CM code for intermittent angle-closure glaucoma, bilateral, in the block H40-H42 (Glaucoma).

Is H40.233 a billable code?

Yes. H40.233 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does H40.233 belong to?

It belongs to category H40 – Glaucoma.

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.