Unspecified open-angle glaucoma

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 5 more specific codes instead:

H40.10X0 Unspecified open-angle glaucoma, stage unspecified
H40.10X1 Unspecified open-angle glaucoma, mild stage
H40.10X2 Unspecified open-angle glaucoma, moderate stage
H40.10X3 Unspecified open-angle glaucoma, severe stage
H40.10X4 Unspecified open-angle glaucoma, indeterminate stage

What has happened to this code

Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2007 Added to the draft code set draft Unspecified open-angle glaucoma
FY2012 Removed from the draft draft
FY2014 Returned to the draft draft

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from H40 Glaucoma

Excludes1 - never coded here

absolute glaucoma (H44.51-)
congenital glaucoma (Q15.0)
traumatic glaucoma due to birth injury (P15.3)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Glaucoma > noncongestive
Glaucoma > nonobstructive
Open, opening > angle with > glaucoma
Glaucoma > open angle

Codes in the same group

Code	Description	Status
H40.11	Primary open-angle glaucoma	Not billable
H40.12	Low-tension glaucoma	Not billable
H40.13	Pigmentary glaucoma	Not billable
H40.14	Capsular glaucoma with pseudoexfoliation of lens	Not billable
H40.15	Residual stage of open-angle glaucoma	Not billable