Idiopathic corneal edema

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 4 more specific codes instead:

H18.221 Idiopathic corneal edema, right eye
H18.222 Idiopathic corneal edema, left eye
H18.223 Idiopathic corneal edema, bilateral
H18.229 Idiopathic corneal edema, unspecified eye

What has happened to this code

Every change the publisher made, from 2012 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.

FY2012 Added to the draft code set draft Idiopathic corneal edema

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.

Pitted
Pitting
Lipedema
Retained
Retention > water
Disorder > cornea > edema
Infiltrate, infiltration > corneal
Disorder > cornea > due to contact lens > specified as edema
Edema, edematous > cornea > idiopathic

Codes in the same group

Code	Description	Status
H18.20	Unspecified corneal edema	Valid
H18.21	Corneal edema secondary to contact lens	Not billable
H18.23	Secondary corneal edema	Not billable