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ICD-10 diagnosis code

H40.9 Glaucoma, unspecified

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H40.9 is the ICD-10 code for Glaucoma, unspecified. It is a four-character subcategory of H40 (Glaucoma), the most specific level in the WHO edition. It belongs to the block H40–H42 (Glaucoma) in Chapter VII, Diseases of the eye and adnexa.

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

H40.9 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

H40.9Glaukom, ospecificerat

NorwayICD-10-NO

H40.9Uspesifisert glaukom

DenmarkICD-10-DK

DH409Glaukom UNS

FinlandICD-10-FI

H40.9Määrittämätön glaukooma

GermanyICD-10-GM

H40.9Glaukom, nicht näher bezeichnet

FranceICD-10-FR

H40.9Glaucome, sans précision

NetherlandsICD-10-NL

H40.9glaucoom, niet-gespecificeerd

United StatesICD-10-CM

H40.9Unspecified glaucoma

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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