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ICD-10 diagnosis code

H21.5 Other adhesions and disruptions of iris and ciliary body

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H21.5 is the ICD-10 code for Other adhesions and disruptions of iris and ciliary body. It is a four-character subcategory of H21 (Other disorders of iris and ciliary body), the most specific level in the WHO edition. It belongs to the block H15–H22 (Disorders of sclera, cornea, iris and ciliary body) in Chapter VII, Diseases of the eye and adnexa.

Code type
Subcategory (4 characters)
Chapter
VII · H00–H59
Classification
WHO ICD-10, 2019 version

What H21.5 includes

Conditions and terms that are coded here.

  • Goniosynechiae
  • Iridodialysis
  • Recession, chamber angle
  • Synechiae (iris):
    • NOS
    • anterior
    • posterior

What H21.5 excludes

Conditions that look similar but belong under another code.

H21.5 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

H21.5Andra sammanväxningar och bristningar av iris och ciliarkroppen

NorwayICD-10-NO

H21.5Annen sammenvoksing eller rift i regnbuehinne eller strålelegeme

DenmarkICD-10-DK

DH215Anden adhærence eller rift i iris og corpus ciliare

  • DH215AGoniosynechia
  • DH215BIridodialysis
  • DH215CRecessio anguli iridocornealis
  • DH215DSynechiae iridis posteriores
  • DH215ESynechiae iridis anteriores
  • DH215FSynekkier i iris UNS
FinlandICD-10-FI

H21.5Muu värikalvon tai sädekehän kiinnike tai repeämä

GermanyICD-10-GM

H21.5Sonstige Adhäsionen und Abriss der Iris und des Ziliarkörpers

FranceICD-10-FR

H21.5Autres adhérences et perturbations de l'iris et du corps ciliaire

NetherlandsICD-10-NL

H21.5overige adhesies en scheuren van iris en corpus ciliare

United StatesICD-10-CM

Listed through more specific codes:

  • H21.501Unspecified adhesions of iris, right eye
  • H21.502Unspecified adhesions of iris, left eye
  • H21.503Unspecified adhesions of iris, bilateral
  • H21.509Unspecified adhesions of iris and ciliary body, unspecified eye
  • H21.511Anterior synechiae (iris), right eye
  • H21.512Anterior synechiae (iris), left eye
  • H21.513Anterior synechiae (iris), bilateral
  • H21.519Anterior synechiae (iris), unspecified eye
  • and 20 more national subcodes

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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