H40.2 ICD-10-CA code: Primary angle-closure glaucoma
H40.2 is the ICD-10-CA code for “Primary angle-closure glaucoma” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
H40.2Primary angle-closure glaucoma
Short description: Primary angle closure glaucoma
ICD-10-CA · Canada · Also written H402
Index terms
Entries in CIHI’s alphabetical index that lead to H40.2. Searching the index by the condition the note names is how coders reach this code.
- Glaucoma, acute
- Glaucoma, malignant
- Glaucoma, obstructive
- Glaucoma, closed angle
- Glaucoma, narrow angle
- Glaucoma, acute, narrow angle
- Glaucoma, chronic, angle closure
- Glaucoma, angle closure (acute) (chronic) (intermittent) (primary) (residual state)
Notes for H40.2
As CIHI prints them, with any note H40.2 takes from the headings above it.
Includes
- Angle-closure glaucoma (primary)(residual stage):• acute• chronic• intermittent
Excludes
Conditions classified elsewhere.
- Absolute glaucoma (H44.5)congenital glaucoma (Q15.0)traumatic glaucoma due to birth injury (P15.3)From H40 Glaucoma
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 7: Diseases of the eye and adnexa (H00-H59)
Where H40.2 sits
- 1ChapterChapter 7: Diseases of the eye and adnexa (H00-H59)
- 2Block H40-H42Glaucoma
- 3Category H40Glaucoma
- 4Valid code H40.2Primary angle-closure glaucoma
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code H40.2 mean?
H40.2 is the ICD-10-CA code for “Primary angle-closure glaucoma” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is H40.2 in ICD-10-CA?
H40.2 sits under H40 Glaucoma, within H40-H42 Glaucoma, within Chapter 7: Diseases of the eye and adnexa (H00-H59).
What coding notes apply to H40.2?
ICD-10-CA lists Includes, Excludes notes for H40.2, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.