H40.223 – Chronic angle-closure glaucoma, bilateral

ICD-10-CM 2027 diagnosis code · Glaucoma

Non-billable header

ICD-10-CM code H40.223

Code: H40.223 (claims format: H40223)
Description: Chronic angle-closure glaucoma, bilateral
Billable: No – use a more specific code below
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 › H40.22

Billable codes under H40.223

H40.223 is a header code and cannot be used on claims. Choose the most specific code:

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

Character	Meaning
`0`	stage unspecified
`1`	mild stage
`2`	moderate stage
`3`	severe stage
`4`	indeterminate stage

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):

aqueous misdirection (H40.83-)
malignant glaucoma (H40.83-)

H40.22 – Chronic angle-closure glaucoma

Applicable to:

Chronic primary angle closure glaucoma

7th character note:

One of the following 7th characters is to be assigned to each code in subcategory H40.22 to designate the stage of glaucoma

Related codes in H40.22

Frequently asked questions

What is ICD-10 code H40.223?

H40.223 is the ICD-10-CM code for chronic angle-closure glaucoma, bilateral, in the block H40-H42 (Glaucoma).

Is H40.223 a billable code?

No. H40.223 is a header code with more specific child codes; report one of the billable codes listed above.

What category does H40.223 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.