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ICD-10-CM Current in FY 2027

H40.10

Unspecified open-angle glaucoma

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where H40.10 sits in the official hierarchy. Each level is the code it is classified under.

  1. H40 Glaucoma
  2. H40.1 Parent Open-angle glaucoma
  3. H40.10 This code Unspecified open-angle glaucoma

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Excludes1

absolute glaucoma ( H44.51- )

Inherited from H40 — Glaucoma

Excludes1

congenital glaucoma ( Q15.0 )

Inherited from H40 — Glaucoma

Excludes1

traumatic glaucoma due to birth injury ( P15.3 )

Inherited from H40 — Glaucoma

7th Character

One of the following 7th characters is to be assigned to code H40.10 to designate the stage of glaucoma

7th Character

0 - stage unspecified

7th Character

1 - mild stage

7th Character

2 - moderate stage

7th Character

3 - severe stage

7th Character

4 - indeterminate stage

More Specific Codes

5 codes under H40.10

Version History

How H40.10 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Unspecified open-angle glaucoma

  2. FY 2026 Effective

    Unchanged

    Unspecified open-angle glaucoma

Related Codes

Other codes under H40.1

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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