H21 is the ICD-10 code for Other disorders of iris and ciliary body. It is a three-character category divided into 8 subcodes; use the subcode whenever the record supports that level of detail. 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
- Category (3 characters)
- Chapter
- VII · H00–H59
- Classification
- WHO ICD-10, 2019 version
What H21 excludes
Conditions that look similar but belong under another code.
- sympathetic uveitis H44.1
Subcodes of H21
- H21.0Hyphaema
- H21.1Other vascular disorders of iris and ciliary body
- H21.2Degeneration of iris and ciliary body
- H21.3Cyst of iris, ciliary body and anterior chamber
- H21.4Pupillary membranes
- H21.5Other adhesions and disruptions of iris and ciliary body
- H21.8Other specified disorders of iris and ciliary body
- H21.9Disorder of iris and ciliary body, unspecified
H21 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DH21Andre sygdomme i regnbuehinde og strålelegeme
H21Muut värikalvon ja sädekehän sairaudet
H21Sonstige Affektionen der Iris und des Ziliarkörpers
H21Autres affections de l'iris et du corps ciliaire
H21overige aandoeningen van iris en corpus ciliare
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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