9C61.16

ICD-11 MMS 2026-01

Chronic angle-closure

Description

Chronic angle closure is a condition when intraocular pressure elevation is due to variable portions of anterior chamber angle being permanently closed by peripheral anterior synechiae.

Index terms

  • Chronic angle-closure
  • CAC - [chronic angle-closure]
  • chronic closed-angle glaucoma
Show allHide
  • chronic primary angle-closure glaucoma
  • chronic residual stage angle-closure glaucoma

Exclusions from above levels

  • KA41 – Traumatic glaucoma due to birth injury
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
Show allHide
  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 19 – Certain conditions originating in the perinatal period
  • 22 – Injury, poisoning or certain other consequences of external causes
  • 8A21.0 – Posterior cortical atrophy

Sibling codes

  • 9C61.10 – Primary angle closure suspect or anatomical narrow angle
  • 9C61.11 – Primary angle-closure
  • 9C61.12 – Primary angle closure glaucoma
  • 9C61.13 – Primary angle closure without pupillary block
  • 9C61.14 – Acute angle closure with pupillary block
  • 9C61.15 – Intermittent angle-closure
  • 9C61.17 – Condition after acute angle-closure glaucoma attack
  • 9C61.1Y – Other specified primary angle closure or angle closure glaucoma
  • 9C61.1Z – Primary angle closure or angle closure glaucoma, unspecified

Foundation entity

Chronic angle-closure – http://id.who.int/icd/entity/339970010

Allowed postcoordination axes

Part of: 9C61.1: Primary angle closure or angle closure glaucoma › 9C61: Glaucoma › 09: Diseases of the visual system